7z-18=-12+5z

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Solution for 7z-18=-12+5z equation:


Simplifying
7z + -18 = -12 + 5z

Reorder the terms:
-18 + 7z = -12 + 5z

Solving
-18 + 7z = -12 + 5z

Solving for variable 'z'.

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

Add '-5z' to each side of the equation.
-18 + 7z + -5z = -12 + 5z + -5z

Combine like terms: 7z + -5z = 2z
-18 + 2z = -12 + 5z + -5z

Combine like terms: 5z + -5z = 0
-18 + 2z = -12 + 0
-18 + 2z = -12

Add '18' to each side of the equation.
-18 + 18 + 2z = -12 + 18

Combine like terms: -18 + 18 = 0
0 + 2z = -12 + 18
2z = -12 + 18

Combine like terms: -12 + 18 = 6
2z = 6

Divide each side by '2'.
z = 3

Simplifying
z = 3

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