Step-by-step explanation
Hi there! We're asked to solve the following equation :
⇒ 3(x + 1) = 15
To solve the equation, we need to isolate x - and to do that, we're going to simplify the left side as much as possible.
I'll start by using the distributive property :
⇒ 3 * x + 3 * 1 = 15
⇒ 3x + 3 = 15
The next step is to subtract 3 from both sides :
⇒ 3x = 15 - 3
⇒ 3x = 12
Finally, divide both sides by 3 :
⇒ 3x/3 = 12/3
⇒ x = 4
Our result is:
⇒ x = 4
