9-5z=9-2-(6z+7)

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Solution for 9-5z=9-2-(6z+7) equation:


Simplifying
9 + -5z = 9 + -2 + -1(6z + 7)

Reorder the terms:
9 + -5z = 9 + -2 + -1(7 + 6z)
9 + -5z = 9 + -2 + (7 * -1 + 6z * -1)
9 + -5z = 9 + -2 + (-7 + -6z)

Combine like terms: 9 + -2 = 7
9 + -5z = 7 + -7 + -6z

Combine like terms: 7 + -7 = 0
9 + -5z = 0 + -6z
9 + -5z = -6z

Solving
9 + -5z = -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 + -5z + 6z = -6z + 6z

Combine like terms: -5z + 6z = 1z
9 + 1z = -6z + 6z

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

Add '-9' to each side of the equation.
9 + -9 + 1z = 0 + -9

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

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

Divide each side by '1'.
z = -9

Simplifying
z = -9

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