Question

solve for z. -97 = -10z + -7

Explanation:

Step1: Add 7 to both sides

To isolate the term with \( z \), we add 7 to both sides of the equation \(-97 = -10z - 7\).
\(-97 + 7 = -10z - 7 + 7\)
\(-90 = -10z\)

Step2: Divide both sides by -10

Now, we divide both sides by -10 to solve for \( z \).
\(\frac{-90}{-10} = \frac{-10z}{-10}\)
\(9 = z\)

Answer:

\(z = 9\)