Question

if 9x + 9 = 2x + 2, what is the value of x + 1? a 11 b 7 c 0 d -7

Explanation:

Step1: Solve for x in the equation

First, we want to isolate x in the equation $9x + 9=2x + 2$. Subtract $2x$ from both sides: $9x-2x + 9=2x-2x + 2$, which simplifies to $7x+9 = 2$. Then subtract 9 from both sides: $7x+9 - 9=2 - 9$, getting $7x=-7$. Divide both sides by 7: $x=\frac{-7}{7}=-1$.

Step2: Find the value of $x + 1$

Substitute $x=-1$ into $x + 1$. We have $-1+1 = 0$.

Answer:

C. 0