-[9z-(16z+9)]=9+(6z+4)

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Solution for -[9z-(16z+9)]=9+(6z+4) equation:


Simplifying
-1[9z + -1(16z + 9)] = 9 + (6z + 4)

Reorder the terms:
-1[9z + -1(9 + 16z)] = 9 + (6z + 4)
-1[9z + (9 * -1 + 16z * -1)] = 9 + (6z + 4)
-1[9z + (-9 + -16z)] = 9 + (6z + 4)

Reorder the terms:
-1[-9 + 9z + -16z] = 9 + (6z + 4)

Combine like terms: 9z + -16z = -7z
-1[-9 + -7z] = 9 + (6z + 4)
[-9 * -1 + -7z * -1] = 9 + (6z + 4)
[9 + 7z] = 9 + (6z + 4)

Reorder the terms:
9 + 7z = 9 + (4 + 6z)

Remove parenthesis around (4 + 6z)
9 + 7z = 9 + 4 + 6z

Combine like terms: 9 + 4 = 13
9 + 7z = 13 + 6z

Solving
9 + 7z = 13 + 6z

Solving for variable 'z'.

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

Add '-6z' to each side of the equation.
9 + 7z + -6z = 13 + 6z + -6z

Combine like terms: 7z + -6z = 1z
9 + 1z = 13 + 6z + -6z

Combine like terms: 6z + -6z = 0
9 + 1z = 13 + 0
9 + 1z = 13

Add '-9' to each side of the equation.
9 + -9 + 1z = 13 + -9

Combine like terms: 9 + -9 = 0
0 + 1z = 13 + -9
1z = 13 + -9

Combine like terms: 13 + -9 = 4
1z = 4

Divide each side by '1'.
z = 4

Simplifying
z = 4

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