-[6z-(15z+7)]=7+(8z+2)

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Solution for -[6z-(15z+7)]=7+(8z+2) equation:


Simplifying
-1[6z + -1(15z + 7)] = 7 + (8z + 2)

Reorder the terms:
-1[6z + -1(7 + 15z)] = 7 + (8z + 2)
-1[6z + (7 * -1 + 15z * -1)] = 7 + (8z + 2)
-1[6z + (-7 + -15z)] = 7 + (8z + 2)

Reorder the terms:
-1[-7 + 6z + -15z] = 7 + (8z + 2)

Combine like terms: 6z + -15z = -9z
-1[-7 + -9z] = 7 + (8z + 2)
[-7 * -1 + -9z * -1] = 7 + (8z + 2)
[7 + 9z] = 7 + (8z + 2)

Reorder the terms:
7 + 9z = 7 + (2 + 8z)

Remove parenthesis around (2 + 8z)
7 + 9z = 7 + 2 + 8z

Combine like terms: 7 + 2 = 9
7 + 9z = 9 + 8z

Solving
7 + 9z = 9 + 8z

Solving for variable 'z'.

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

Add '-8z' to each side of the equation.
7 + 9z + -8z = 9 + 8z + -8z

Combine like terms: 9z + -8z = 1z
7 + 1z = 9 + 8z + -8z

Combine like terms: 8z + -8z = 0
7 + 1z = 9 + 0
7 + 1z = 9

Add '-7' to each side of the equation.
7 + -7 + 1z = 9 + -7

Combine like terms: 7 + -7 = 0
0 + 1z = 9 + -7
1z = 9 + -7

Combine like terms: 9 + -7 = 2
1z = 2

Divide each side by '1'.
z = 2

Simplifying
z = 2

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