-[8z-(12z+5)]=5+(3z+7)

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Solution for -[8z-(12z+5)]=5+(3z+7) equation:


Simplifying
-1[8z + -1(12z + 5)] = 5 + (3z + 7)

Reorder the terms:
-1[8z + -1(5 + 12z)] = 5 + (3z + 7)
-1[8z + (5 * -1 + 12z * -1)] = 5 + (3z + 7)
-1[8z + (-5 + -12z)] = 5 + (3z + 7)

Reorder the terms:
-1[-5 + 8z + -12z] = 5 + (3z + 7)

Combine like terms: 8z + -12z = -4z
-1[-5 + -4z] = 5 + (3z + 7)
[-5 * -1 + -4z * -1] = 5 + (3z + 7)
[5 + 4z] = 5 + (3z + 7)

Reorder the terms:
5 + 4z = 5 + (7 + 3z)

Remove parenthesis around (7 + 3z)
5 + 4z = 5 + 7 + 3z

Combine like terms: 5 + 7 = 12
5 + 4z = 12 + 3z

Solving
5 + 4z = 12 + 3z

Solving for variable 'z'.

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

Add '-3z' to each side of the equation.
5 + 4z + -3z = 12 + 3z + -3z

Combine like terms: 4z + -3z = 1z
5 + 1z = 12 + 3z + -3z

Combine like terms: 3z + -3z = 0
5 + 1z = 12 + 0
5 + 1z = 12

Add '-5' to each side of the equation.
5 + -5 + 1z = 12 + -5

Combine like terms: 5 + -5 = 0
0 + 1z = 12 + -5
1z = 12 + -5

Combine like terms: 12 + -5 = 7
1z = 7

Divide each side by '1'.
z = 7

Simplifying
z = 7

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