70 = -7 (-2 - 2z)
First, divide both sides by -7. / Your problem should look like: [tex] \frac{70}{-7} [/tex] = -2 - 2z
Second, simplify [tex] \frac{70}{-7} [/tex] to [tex]- \frac{70}{7} [/tex] / Your problem should look like: [tex] -\frac{70}{7} [/tex] = -2 - 2z
Third, simplify [tex] \frac{70}{7} [/tex] 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: [tex] \frac{-8}{-2} [/tex] = z
Seventh, simplify [tex] \frac{-8}{-2} [/tex] to [tex] \frac{8}{2} [/tex] / Your problem should look like: [tex] \frac{8}{2} [/tex] = z
Eighth, simplify [tex] \frac{8}{2} [/tex] 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
