7-z=8

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Solution for 7-z=8 equation: 


Simplifying
7 + -1z = 8

Solving
7 + -1z = 8

Solving for variable 'z'.

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

Add '-7' to each side of the equation.
7 + -7 + -1z = 8 + -7

Combine like terms: 7 + -7 = 0
0 + -1z = 8 + -7
-1z = 8 + -7

Combine like terms: 8 + -7 = 1
-1z = 1

Divide each side by '-1'.
z = -1

Simplifying
z = -1

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