EQUATION
Exercise: -30 = 5(x + 1)
First, apply the distributive property:
-30 = 5(x + 1)
-30 = 5x + 5
Substract 5 from both sides:
-30 - 5 = 5x + 5 - 5
-35 = 5x
Divide both sides by 5:
![\mathsf{(-35)/(5) = (5x)/(5)}](https://img.qammunity.org/2022/formulas/mathematics/high-school/6mvannq6zhezpt2n6aqxvnrl7b8qx6cs50.png)
![\large{\boxed{\mathsf{-7 = x}}}](https://img.qammunity.org/2022/formulas/mathematics/high-school/6v3ipkfbn7ga17gcyigzymy4yfqf95fh9v.png)
Let's check the answer:
-30 = 5(x + 1)
-30 = 5(-7 + 1)
-30 = 5(-6)
-30 = -30
The answer is correct.
Answer. The value of x = -7.