9+8z-3=9z+18-7z

Solution for 9+8z-3=9z+18-7z equation:

Simplifying
9 + 8z + -3 = 9z + 18 + -7z

Reorder the terms:
9 + -3 + 8z = 9z + 18 + -7z

Combine like terms: 9 + -3 = 6
6 + 8z = 9z + 18 + -7z

Reorder the terms:
6 + 8z = 18 + 9z + -7z

Combine like terms: 9z + -7z = 2z
6 + 8z = 18 + 2z

Solving
6 + 8z = 18 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
6 + 8z + -2z = 18 + 2z + -2z

Combine like terms: 8z + -2z = 6z
6 + 6z = 18 + 2z + -2z

Combine like terms: 2z + -2z = 0
6 + 6z = 18 + 0
6 + 6z = 18

Add '-6' to each side of the equation.
6 + -6 + 6z = 18 + -6

Combine like terms: 6 + -6 = 0
0 + 6z = 18 + -6
6z = 18 + -6

Combine like terms: 18 + -6 = 12
6z = 12

Divide each side by '6'.
z = 2

Simplifying
z = 2