-7+9(-z+4)=3(2z-8)+7

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Solution for -7+9(-z+4)=3(2z-8)+7 equation:


Simplifying
-7 + 9(-1z + 4) = 3(2z + -8) + 7

Reorder the terms:
-7 + 9(4 + -1z) = 3(2z + -8) + 7
-7 + (4 * 9 + -1z * 9) = 3(2z + -8) + 7
-7 + (36 + -9z) = 3(2z + -8) + 7

Combine like terms: -7 + 36 = 29
29 + -9z = 3(2z + -8) + 7

Reorder the terms:
29 + -9z = 3(-8 + 2z) + 7
29 + -9z = (-8 * 3 + 2z * 3) + 7
29 + -9z = (-24 + 6z) + 7

Reorder the terms:
29 + -9z = -24 + 7 + 6z

Combine like terms: -24 + 7 = -17
29 + -9z = -17 + 6z

Solving
29 + -9z = -17 + 6z

Solving for variable 'z'.

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

Add '-6z' to each side of the equation.
29 + -9z + -6z = -17 + 6z + -6z

Combine like terms: -9z + -6z = -15z
29 + -15z = -17 + 6z + -6z

Combine like terms: 6z + -6z = 0
29 + -15z = -17 + 0
29 + -15z = -17

Add '-29' to each side of the equation.
29 + -29 + -15z = -17 + -29

Combine like terms: 29 + -29 = 0
0 + -15z = -17 + -29
-15z = -17 + -29

Combine like terms: -17 + -29 = -46
-15z = -46

Divide each side by '-15'.
z = 3.066666667

Simplifying
z = 3.066666667

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