Question

do the same operation to each side so that 3x is remaining on the left. then rewrite the equation.$3(x + 3) = 18$$3x + 9 = 18$

Explanation:

Step1: Subtract 9 from both sides

$3x + 9 - 9 = 18 - 9$

Step2: Simplify both sides

$3x = 9$

Answer:

$3x = 9$