Question

1. $9x + 18 = 3x + 18$

Explanation:

Step1: Subtract 18 from both sides

$9x + 18 - 18 = 3x + 18 - 18$
Simplifies to: $9x = 3x$

Step2: Subtract $3x$ from both sides

$9x - 3x = 3x - 3x$
Simplifies to: $6x = 0$

Step3: Divide by 6 on both sides

$\frac{6x}{6} = \frac{0}{6}$

Answer:

$x = 0$