7-8z=-25

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Solution for 7-8z=-25 equation: 


Simplifying
7 + -8z = -25

Solving
7 + -8z = -25

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 + -8z = -25 + -7

Combine like terms: 7 + -7 = 0
0 + -8z = -25 + -7
-8z = -25 + -7

Combine like terms: -25 + -7 = -32
-8z = -32

Divide each side by '-8'.
z = 4

Simplifying
z = 4

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