Question

solve the equation 8(n + 7) = 88.
88 is evenly divisible by 8, so dividing both sides by 8 is a good way to start solving this equation.
how can you isolate the variable n?
8(n + 7) = 88
\frac{8(n + 7)}{8} = \frac{88}{8}
divide both sides by 8.
n + 7 = 11
? on both sides.

Explanation:

Step1: Analyze the equation after division

We have \( n + 7=11 \). To isolate \( n \), we need to get rid of the \( + 7 \) on the left - hand side.

Step2: Perform the inverse operation

The inverse operation of addition is subtraction. So we subtract 7 from both sides of the equation \( n + 7 = 11 \).
Mathematically, we have \( n+7 - 7=11 - 7 \).
Simplifying both sides, the left - hand side becomes \( n+(7 - 7)=n+0=n \), and the right - hand side becomes \( 11-7 = 4 \).

Answer:

Subtract, 7 (So we should select "Subtract" from the first dropdown and "7" from the second dropdown, then perform the operation on both sides. The value of \( n \) is 4)