Set 10: Linear Equations

Explanation

Answer: C

Solve for x: 3x + 7 = 22

Solve for x: 2x + 9 = 3x - 4

What is the value of x?

✓ Correct

Detailed Explanation

Choice C is correct. Subtract 7 from both sides: 3 x = 15. Then divide both sides by 3: x = 5.

Key Steps:

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The correct answer is 5

Why others are wrong:

A: Choice A is incorrect and may result from a calculation error.

B: Choice B is incorrect and may result from a calculation error.

D: Choice D is incorrect and may result from a calculation error.

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