8z-7z=-9+7

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Solution for 8z-7z=-9+7 equation: 


Simplifying
8z + -7z = -9 + 7

Combine like terms: 8z + -7z = 1z
1z = -9 + 7

Combine like terms: -9 + 7 = -2
1z = -2

Solving
1z = -2

Solving for variable 'z'.

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

Divide each side by '1'.
z = -2

Simplifying
z = -2

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