9z+3-7z=57-7z

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Solution for 9z+3-7z=57-7z equation:


Simplifying
9z + 3 + -7z = 57 + -7z

Reorder the terms:
3 + 9z + -7z = 57 + -7z

Combine like terms: 9z + -7z = 2z
3 + 2z = 57 + -7z

Solving
3 + 2z = 57 + -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.
3 + 2z + 7z = 57 + -7z + 7z

Combine like terms: 2z + 7z = 9z
3 + 9z = 57 + -7z + 7z

Combine like terms: -7z + 7z = 0
3 + 9z = 57 + 0
3 + 9z = 57

Add '-3' to each side of the equation.
3 + -3 + 9z = 57 + -3

Combine like terms: 3 + -3 = 0
0 + 9z = 57 + -3
9z = 57 + -3

Combine like terms: 57 + -3 = 54
9z = 54

Divide each side by '9'.
z = 6

Simplifying
z = 6

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