-8=z7+2

Rewrite the equation as z7+2=-8.

z7+2=-8

Subtract 2 from both sides of the equation.

z7=-8-2

Subtract 2 from -8.

z7=-10

z7=-10

Multiply both sides of the equation by 7.

7⋅z7=7⋅-10

Cancel the common factor of 7.

Cancel the common factor.

7⋅z7=7⋅-10

Rewrite the expression.

z=7⋅-10

z=7⋅-10

Multiply 7 by -10.

z=-70

z=-70

Solve for z -8=z/7+2