9z+2-7z=83-7z

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Solution for 9z+2-7z=83-7z equation: 


Simplifying
9z + 2 + -7z = 83 + -7z

Reorder the terms:
2 + 9z + -7z = 83 + -7z

Combine like terms: 9z + -7z = 2z
2 + 2z = 83 + -7z

Solving
2 + 2z = 83 + -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.
2 + 2z + 7z = 83 + -7z + 7z

Combine like terms: 2z + 7z = 9z
2 + 9z = 83 + -7z + 7z

Combine like terms: -7z + 7z = 0
2 + 9z = 83 + 0
2 + 9z = 83

Add '-2' to each side of the equation.
2 + -2 + 9z = 83 + -2

Combine like terms: 2 + -2 = 0
0 + 9z = 83 + -2
9z = 83 + -2

Combine like terms: 83 + -2 = 81
9z = 81

Divide each side by '9'.
z = 9

Simplifying
z = 9

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