-9(z-7)=-8z-9

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


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

Reorder the terms:
-9(-7 + z) = -8z + -9
(-7 * -9 + z * -9) = -8z + -9
(63 + -9z) = -8z + -9

Reorder the terms:
63 + -9z = -9 + -8z

Solving
63 + -9z = -9 + -8z

Solving for variable 'z'.

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

Add '8z' to each side of the equation.
63 + -9z + 8z = -9 + -8z + 8z

Combine like terms: -9z + 8z = -1z
63 + -1z = -9 + -8z + 8z

Combine like terms: -8z + 8z = 0
63 + -1z = -9 + 0
63 + -1z = -9

Add '-63' to each side of the equation.
63 + -63 + -1z = -9 + -63

Combine like terms: 63 + -63 = 0
0 + -1z = -9 + -63
-1z = -9 + -63

Combine like terms: -9 + -63 = -72
-1z = -72

Divide each side by '-1'.
z = 72

Simplifying
z = 72

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