-3+9z+2-7z=

Solution for -3+9z+2-7z= equation:

Simplifying
-3 + 9z + 2 + -7z = 0

Reorder the terms:
-3 + 2 + 9z + -7z = 0

Combine like terms: -3 + 2 = -1
-1 + 9z + -7z = 0

Combine like terms: 9z + -7z = 2z
-1 + 2z = 0

Solving
-1 + 2z = 0

Solving for variable 'z'.

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

Add '1' to each side of the equation.
-1 + 1 + 2z = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 2z = 0 + 1
2z = 0 + 1

Combine like terms: 0 + 1 = 1
2z = 1

Divide each side by '2'.
z = 0.5

Simplifying
z = 0.5