9Z-8Z=-13+20

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Solution for 9Z-8Z=-13+20 equation: 


Simplifying
9Z + -8Z = -13 + 20

Combine like terms: 9Z + -8Z = 1Z
1Z = -13 + 20

Combine like terms: -13 + 20 = 7
1Z = 7

Solving
1Z = 7

Solving for variable 'Z'.

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

Divide each side by '1'.
Z = 7

Simplifying
Z = 7

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