Question

lesson 6 practice problems

1. which equation is equivalent to the equation 6x + 9 = 12?

a. x + 9 = 6
b. 2x + 3 = 4
c. 3x + 9 = 6
d. 6x + 12 = 9

Explanation:

Step1: Divide original equation by 3

Divide each term of $6x + 9=12$ by 3. We get $\frac{6x}{3}+\frac{9}{3}=\frac{12}{3}$.

Step2: Simplify the equation

$2x + 3 = 4$.

Answer:

B. $2x + 3 = 4$