7z+3=9z-3

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

Simplifying
7z + 3 = 9z + -3

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

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

Solving
3 + 7z = -3 + 9z

Solving for variable 'z'.

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

Add '-9z' to each side of the equation.
3 + 7z + -9z = -3 + 9z + -9z

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

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

Add '-3' to each side of the equation.
3 + -3 + -2z = -3 + -3

Combine like terms: 3 + -3 = 0
0 + -2z = -3 + -3
-2z = -3 + -3

Combine like terms: -3 + -3 = -6
-2z = -6

Divide each side by '-2'.
z = 3

Simplifying
z = 3