-7z+4+9z=18

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Solution for -7z+4+9z=18 equation:


Simplifying
-7z + 4 + 9z = 18

Reorder the terms:
4 + -7z + 9z = 18

Combine like terms: -7z + 9z = 2z
4 + 2z = 18

Solving
4 + 2z = 18

Solving for variable 'z'.

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

Add '-4' to each side of the equation.
4 + -4 + 2z = 18 + -4

Combine like terms: 4 + -4 = 0
0 + 2z = 18 + -4
2z = 18 + -4

Combine like terms: 18 + -4 = 14
2z = 14

Divide each side by '2'.
z = 7

Simplifying
z = 7

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