-2(6z-3)+13(z-7)=-81-9

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Solution for -2(6z-3)+13(z-7)=-81-9 equation:


Simplifying
-2(6z + -3) + 13(z + -7) = -81 + -9

Reorder the terms:
-2(-3 + 6z) + 13(z + -7) = -81 + -9
(-3 * -2 + 6z * -2) + 13(z + -7) = -81 + -9
(6 + -12z) + 13(z + -7) = -81 + -9

Reorder the terms:
6 + -12z + 13(-7 + z) = -81 + -9
6 + -12z + (-7 * 13 + z * 13) = -81 + -9
6 + -12z + (-91 + 13z) = -81 + -9

Reorder the terms:
6 + -91 + -12z + 13z = -81 + -9

Combine like terms: 6 + -91 = -85
-85 + -12z + 13z = -81 + -9

Combine like terms: -12z + 13z = 1z
-85 + 1z = -81 + -9

Combine like terms: -81 + -9 = -90
-85 + 1z = -90

Solving
-85 + 1z = -90

Solving for variable 'z'.

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

Add '85' to each side of the equation.
-85 + 85 + 1z = -90 + 85

Combine like terms: -85 + 85 = 0
0 + 1z = -90 + 85
1z = -90 + 85

Combine like terms: -90 + 85 = -5
1z = -5

Divide each side by '1'.
z = -5

Simplifying
z = -5

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