7z-3z+12-5=8z+7

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Solution for 7z-3z+12-5=8z+7 equation:


Simplifying
7z + -3z + 12 + -5 = 8z + 7

Reorder the terms:
12 + -5 + 7z + -3z = 8z + 7

Combine like terms: 12 + -5 = 7
7 + 7z + -3z = 8z + 7

Combine like terms: 7z + -3z = 4z
7 + 4z = 8z + 7

Reorder the terms:
7 + 4z = 7 + 8z

Add '-7' to each side of the equation.
7 + -7 + 4z = 7 + -7 + 8z

Combine like terms: 7 + -7 = 0
0 + 4z = 7 + -7 + 8z
4z = 7 + -7 + 8z

Combine like terms: 7 + -7 = 0
4z = 0 + 8z
4z = 8z

Solving
4z = 8z

Solving for variable 'z'.

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

Add '-8z' to each side of the equation.
4z + -8z = 8z + -8z

Combine like terms: 4z + -8z = -4z
-4z = 8z + -8z

Combine like terms: 8z + -8z = 0
-4z = 0

Divide each side by '-4'.
z = 0

Simplifying
z = 0

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