-2(z-5)-(6z-9)=-9z

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Solution for -2(z-5)-(6z-9)=-9z equation:


Simplifying
-2(z + -5) + -1(6z + -9) = -9z

Reorder the terms:
-2(-5 + z) + -1(6z + -9) = -9z
(-5 * -2 + z * -2) + -1(6z + -9) = -9z
(10 + -2z) + -1(6z + -9) = -9z

Reorder the terms:
10 + -2z + -1(-9 + 6z) = -9z
10 + -2z + (-9 * -1 + 6z * -1) = -9z
10 + -2z + (9 + -6z) = -9z

Reorder the terms:
10 + 9 + -2z + -6z = -9z

Combine like terms: 10 + 9 = 19
19 + -2z + -6z = -9z

Combine like terms: -2z + -6z = -8z
19 + -8z = -9z

Solving
19 + -8z = -9z

Solving for variable 'z'.

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

Add '9z' to each side of the equation.
19 + -8z + 9z = -9z + 9z

Combine like terms: -8z + 9z = 1z
19 + 1z = -9z + 9z

Combine like terms: -9z + 9z = 0
19 + 1z = 0

Add '-19' to each side of the equation.
19 + -19 + 1z = 0 + -19

Combine like terms: 19 + -19 = 0
0 + 1z = 0 + -19
1z = 0 + -19

Combine like terms: 0 + -19 = -19
1z = -19

Divide each side by '1'.
z = -19

Simplifying
z = -19

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