9(8+7z)=-20

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Solution for 9(8+7z)=-20 equation: 


Simplifying
9(8 + 7z) = -20
(8 * 9 + 7z * 9) = -20
(72 + 63z) = -20

Solving
72 + 63z = -20

Solving for variable 'z'.

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

Add '-72' to each side of the equation.
72 + -72 + 63z = -20 + -72

Combine like terms: 72 + -72 = 0
0 + 63z = -20 + -72
63z = -20 + -72

Combine like terms: -20 + -72 = -92
63z = -92

Divide each side by '63'.
z = -1.46031746

Simplifying
z = -1.46031746

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