8+3(2z-5)-3(4z+5)-9=

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Solution for 8+3(2z-5)-3(4z+5)-9= equation:


Simplifying
8 + 3(2z + -5) + -3(4z + 5) + -9 = 0

Reorder the terms:
8 + 3(-5 + 2z) + -3(4z + 5) + -9 = 0
8 + (-5 * 3 + 2z * 3) + -3(4z + 5) + -9 = 0
8 + (-15 + 6z) + -3(4z + 5) + -9 = 0

Reorder the terms:
8 + -15 + 6z + -3(5 + 4z) + -9 = 0
8 + -15 + 6z + (5 * -3 + 4z * -3) + -9 = 0
8 + -15 + 6z + (-15 + -12z) + -9 = 0

Reorder the terms:
8 + -15 + -15 + -9 + 6z + -12z = 0

Combine like terms: 8 + -15 = -7
-7 + -15 + -9 + 6z + -12z = 0

Combine like terms: -7 + -15 = -22
-22 + -9 + 6z + -12z = 0

Combine like terms: -22 + -9 = -31
-31 + 6z + -12z = 0

Combine like terms: 6z + -12z = -6z
-31 + -6z = 0

Solving
-31 + -6z = 0

Solving for variable 'z'.

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

Add '31' to each side of the equation.
-31 + 31 + -6z = 0 + 31

Combine like terms: -31 + 31 = 0
0 + -6z = 0 + 31
-6z = 0 + 31

Combine like terms: 0 + 31 = 31
-6z = 31

Divide each side by '-6'.
z = -5.166666667

Simplifying
z = -5.166666667

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