-[7z-(15z+9)]=9+(7z+5)

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Solution for -[7z-(15z+9)]=9+(7z+5) equation:


Simplifying
-1[7z + -1(15z + 9)] = 9 + (7z + 5)

Reorder the terms:
-1[7z + -1(9 + 15z)] = 9 + (7z + 5)
-1[7z + (9 * -1 + 15z * -1)] = 9 + (7z + 5)
-1[7z + (-9 + -15z)] = 9 + (7z + 5)

Reorder the terms:
-1[-9 + 7z + -15z] = 9 + (7z + 5)

Combine like terms: 7z + -15z = -8z
-1[-9 + -8z] = 9 + (7z + 5)
[-9 * -1 + -8z * -1] = 9 + (7z + 5)
[9 + 8z] = 9 + (7z + 5)

Reorder the terms:
9 + 8z = 9 + (5 + 7z)

Remove parenthesis around (5 + 7z)
9 + 8z = 9 + 5 + 7z

Combine like terms: 9 + 5 = 14
9 + 8z = 14 + 7z

Solving
9 + 8z = 14 + 7z

Solving for variable 'z'.

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

Add '-7z' to each side of the equation.
9 + 8z + -7z = 14 + 7z + -7z

Combine like terms: 8z + -7z = 1z
9 + 1z = 14 + 7z + -7z

Combine like terms: 7z + -7z = 0
9 + 1z = 14 + 0
9 + 1z = 14

Add '-9' to each side of the equation.
9 + -9 + 1z = 14 + -9

Combine like terms: 9 + -9 = 0
0 + 1z = 14 + -9
1z = 14 + -9

Combine like terms: 14 + -9 = 5
1z = 5

Divide each side by '1'.
z = 5

Simplifying
z = 5

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