70 = -7 (-2 - 2z)
First, divide both sides by -7. / Your problem should look like: \(\frac{70}{-7}\) = -2 - 2z
Second, simplify \(\frac{70}{-7}\) to \(- \frac{70}{7}\) / Your problem should look like: \(-\frac{70}{7}\) = -2 - 2z
Third, simplify \(\frac{70}{7}\) to get 10. / Your problem should look like: -10 = -2 - 2z
Fourth, add 2 to both sides. / Your problem should look like: -10 + 2 = -2z
Fifth, simplify -10 + 2 to get -8. / Your problem should look like: -8 = -2z
Sixth, divide both sides by -2. / Your problem should look like: \(\frac{-8}{-2}\) = z
Seventh, simplify \(\frac{-8}{-2}\) to \(\frac{8}{2}\) / Your problem should look like: \(\frac{8}{2}\) = z
Eighth, simplify \(\frac{8}{2}\) to get 4. / Your problem should look like: 4 = z
Ninth, switch your problem around. / Your problem should look like: z = 4
Answer: z = 4
