-9(z-7)=-10z

Solution for -9(z-7)=-10z equation:

Simplifying
-9(z + -7) = -10z

Reorder the terms:
-9(-7 + z) = -10z
(-7 * -9 + z * -9) = -10z
(63 + -9z) = -10z

Solving
63 + -9z = -10z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '10z' to each side of the equation.
63 + -9z + 10z = -10z + 10z

Combine like terms: -9z + 10z = 1z
63 + 1z = -10z + 10z

Combine like terms: -10z + 10z = 0
63 + 1z = 0

Add '-63' to each side of the equation.
63 + -63 + 1z = 0 + -63

Combine like terms: 63 + -63 = 0
0 + 1z = 0 + -63
1z = 0 + -63

Combine like terms: 0 + -63 = -63
1z = -63

Divide each side by '1'.
z = -63

Simplifying
z = -63