Set 3: Linear Equations (Advanced)

**Choice C is the best answer.** Solve step by step: x = 18

Explanation

Answer: C

PROBLEM

Solve for x: 5(x + 0) = 90

✓ Correct

Detailed Explanation

Choice C is the best answer. Solve step by step: x = 18

Why others are wrong:

A: 20 is incorrect because it does not satisfy the equation.

B: 17 is incorrect because it does not satisfy the equation.

D: 19 is incorrect because it does not satisfy the equation.