2+2(-7z-6)=-8(-4z-5)-9

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Solution for 2+2(-7z-6)=-8(-4z-5)-9 equation:


Simplifying
2 + 2(-7z + -6) = -8(-4z + -5) + -9

Reorder the terms:
2 + 2(-6 + -7z) = -8(-4z + -5) + -9
2 + (-6 * 2 + -7z * 2) = -8(-4z + -5) + -9
2 + (-12 + -14z) = -8(-4z + -5) + -9

Combine like terms: 2 + -12 = -10
-10 + -14z = -8(-4z + -5) + -9

Reorder the terms:
-10 + -14z = -8(-5 + -4z) + -9
-10 + -14z = (-5 * -8 + -4z * -8) + -9
-10 + -14z = (40 + 32z) + -9

Reorder the terms:
-10 + -14z = 40 + -9 + 32z

Combine like terms: 40 + -9 = 31
-10 + -14z = 31 + 32z

Solving
-10 + -14z = 31 + 32z

Solving for variable 'z'.

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

Add '-32z' to each side of the equation.
-10 + -14z + -32z = 31 + 32z + -32z

Combine like terms: -14z + -32z = -46z
-10 + -46z = 31 + 32z + -32z

Combine like terms: 32z + -32z = 0
-10 + -46z = 31 + 0
-10 + -46z = 31

Add '10' to each side of the equation.
-10 + 10 + -46z = 31 + 10

Combine like terms: -10 + 10 = 0
0 + -46z = 31 + 10
-46z = 31 + 10

Combine like terms: 31 + 10 = 41
-46z = 41

Divide each side by '-46'.
z = -0.8913043478

Simplifying
z = -0.8913043478

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