7(6z-1)+3(2z+1)-5(12z-7)=23

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Solution for 7(6z-1)+3(2z+1)-5(12z-7)=23 equation:


Simplifying
7(6z + -1) + 3(2z + 1) + -5(12z + -7) = 23

Reorder the terms:
7(-1 + 6z) + 3(2z + 1) + -5(12z + -7) = 23
(-1 * 7 + 6z * 7) + 3(2z + 1) + -5(12z + -7) = 23
(-7 + 42z) + 3(2z + 1) + -5(12z + -7) = 23

Reorder the terms:
-7 + 42z + 3(1 + 2z) + -5(12z + -7) = 23
-7 + 42z + (1 * 3 + 2z * 3) + -5(12z + -7) = 23
-7 + 42z + (3 + 6z) + -5(12z + -7) = 23

Reorder the terms:
-7 + 42z + 3 + 6z + -5(-7 + 12z) = 23
-7 + 42z + 3 + 6z + (-7 * -5 + 12z * -5) = 23
-7 + 42z + 3 + 6z + (35 + -60z) = 23

Reorder the terms:
-7 + 3 + 35 + 42z + 6z + -60z = 23

Combine like terms: -7 + 3 = -4
-4 + 35 + 42z + 6z + -60z = 23

Combine like terms: -4 + 35 = 31
31 + 42z + 6z + -60z = 23

Combine like terms: 42z + 6z = 48z
31 + 48z + -60z = 23

Combine like terms: 48z + -60z = -12z
31 + -12z = 23

Solving
31 + -12z = 23

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 + -12z = 23 + -31

Combine like terms: 31 + -31 = 0
0 + -12z = 23 + -31
-12z = 23 + -31

Combine like terms: 23 + -31 = -8
-12z = -8

Divide each side by '-12'.
z = 0.6666666667

Simplifying
z = 0.6666666667

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