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Introduction to Algebra — Easy Worksheet 1
Grade 5 · Whoobee Name: ____________________ Date: __________
Answer each question.
How to solve
To evaluate an expression, replace x with its value and compute (2x means 2 × x). To solve x + b = c, subtract b from both sides; to solve ax = c, divide both sides by a.
Example
If x = 6, what is 7x + 1?
Answer: 43
Not quite. The answer is
💡 2x means 2 × x. Put 5 in for x: 2 × 5 + 5 = 10 + 5 = 15.
✓ Correct!
Not quite. The answer is
💡 2x means 2 × x. Put 5 in for x: 2 × 5 + 5 = 10 + 5 = 15.
💡 How to solve: Introduction to Algebra
To evaluate an expression, replace x with its value and compute (2x means 2 × x). To solve x + b = c, subtract b from both sides; to solve ax = c, divide both sides by a.
Try a similar one
If x = 1, what is 8x + 4?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 4x means 4 × x. Undo multiplying by 4 by dividing: x = 24 ÷ 4 = 6. Check: 4 × 6 = 24.
✓ Correct!
Not quite. The answer is
💡 4x means 4 × x. Undo multiplying by 4 by dividing: x = 24 ÷ 4 = 6. Check: 4 × 6 = 24.
💡 How to solve: Introduction to Algebra
To evaluate an expression, replace x with its value and compute (2x means 2 × x). To solve x + b = c, subtract b from both sides; to solve ax = c, divide both sides by a.
Try a similar one
If x = 5, what is 9x + 6?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 3x means 3 × x. Put 6 in for x: 3 × 6 + 6 = 18 + 6 = 24.
✓ Correct!
Not quite. The answer is
💡 3x means 3 × x. Put 6 in for x: 3 × 6 + 6 = 18 + 6 = 24.
💡 How to solve: Introduction to Algebra
To evaluate an expression, replace x with its value and compute (2x means 2 × x). To solve x + b = c, subtract b from both sides; to solve ax = c, divide both sides by a.
Try a similar one
If x = 5, what is 9x + 4?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Undo adding 3 by subtracting it: x = 5 − 3 = 2. Check: 2 + 3 = 5.
✓ Correct!
Not quite. The answer is
💡 Undo adding 3 by subtracting it: x = 5 − 3 = 2. Check: 2 + 3 = 5.
💡 How to solve: Introduction to Algebra
To evaluate an expression, replace x with its value and compute (2x means 2 × x). To solve x + b = c, subtract b from both sides; to solve ax = c, divide both sides by a.
Try a similar one
If x = 1, what is 3x + 2?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 2x means 2 × x. Put 5 in for x: 2 × 5 + 6 = 10 + 6 = 16.
✓ Correct!
Not quite. The answer is
💡 2x means 2 × x. Put 5 in for x: 2 × 5 + 6 = 10 + 6 = 16.
💡 How to solve: Introduction to Algebra
To evaluate an expression, replace x with its value and compute (2x means 2 × x). To solve x + b = c, subtract b from both sides; to solve ax = c, divide both sides by a.
Try a similar one
If x = 4, what is 3x + 4?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Undo adding 6 by subtracting it: x = 8 − 6 = 2. Check: 2 + 6 = 8.
✓ Correct!
Not quite. The answer is
💡 Undo adding 6 by subtracting it: x = 8 − 6 = 2. Check: 2 + 6 = 8.
💡 How to solve: Introduction to Algebra
To evaluate an expression, replace x with its value and compute (2x means 2 × x). To solve x + b = c, subtract b from both sides; to solve ax = c, divide both sides by a.
Try a similar one
If x = 2, what is 2x + 7?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 2x means 2 × x. Put 3 in for x: 2 × 3 + 7 = 6 + 7 = 13.
✓ Correct!
Not quite. The answer is
💡 2x means 2 × x. Put 3 in for x: 2 × 3 + 7 = 6 + 7 = 13.
💡 How to solve: Introduction to Algebra
To evaluate an expression, replace x with its value and compute (2x means 2 × x). To solve x + b = c, subtract b from both sides; to solve ax = c, divide both sides by a.
Try a similar one
If x = 1, what is 3x + 2?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
Not quite. The answer is
💡 Undo adding 4 by subtracting it: x = 10 − 4 = 6. Check: 6 + 4 = 10.
✓ Correct!
Not quite. The answer is
💡 Undo adding 4 by subtracting it: x = 10 − 4 = 6. Check: 6 + 4 = 10.
💡 How to solve: Introduction to Algebra
To evaluate an expression, replace x with its value and compute (2x means 2 × x). To solve x + b = c, subtract b from both sides; to solve ax = c, divide both sides by a.
Try a similar one
If x = 4, what is 9x + 6?
✓ You've got it! Press Next to keep going. Not yet — the answer is . Read the steps above once more.
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Introduction to Algebra — Easy Worksheet 1
Answer each question.