-[2z-(7z+8)]=8+(4z+9)

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Solution for -[2z-(7z+8)]=8+(4z+9) equation:


Simplifying
-1[2z + -1(7z + 8)] = 8 + (4z + 9)

Reorder the terms:
-1[2z + -1(8 + 7z)] = 8 + (4z + 9)
-1[2z + (8 * -1 + 7z * -1)] = 8 + (4z + 9)
-1[2z + (-8 + -7z)] = 8 + (4z + 9)

Reorder the terms:
-1[-8 + 2z + -7z] = 8 + (4z + 9)

Combine like terms: 2z + -7z = -5z
-1[-8 + -5z] = 8 + (4z + 9)
[-8 * -1 + -5z * -1] = 8 + (4z + 9)
[8 + 5z] = 8 + (4z + 9)

Reorder the terms:
8 + 5z = 8 + (9 + 4z)

Remove parenthesis around (9 + 4z)
8 + 5z = 8 + 9 + 4z

Combine like terms: 8 + 9 = 17
8 + 5z = 17 + 4z

Solving
8 + 5z = 17 + 4z

Solving for variable 'z'.

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

Add '-4z' to each side of the equation.
8 + 5z + -4z = 17 + 4z + -4z

Combine like terms: 5z + -4z = 1z
8 + 1z = 17 + 4z + -4z

Combine like terms: 4z + -4z = 0
8 + 1z = 17 + 0
8 + 1z = 17

Add '-8' to each side of the equation.
8 + -8 + 1z = 17 + -8

Combine like terms: 8 + -8 = 0
0 + 1z = 17 + -8
1z = 17 + -8

Combine like terms: 17 + -8 = 9
1z = 9

Divide each side by '1'.
z = 9

Simplifying
z = 9

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