7z-9z+2+z=

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

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

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

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

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

Solving
2 + -1z = 0

Solving for variable 'z'.

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

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

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

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

Divide each side by '-1'.
z = 2

Simplifying
z = 2