7+3z-1=9z+12-7z

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Solution for 7+3z-1=9z+12-7z equation:


Simplifying
7 + 3z + -1 = 9z + 12 + -7z

Reorder the terms:
7 + -1 + 3z = 9z + 12 + -7z

Combine like terms: 7 + -1 = 6
6 + 3z = 9z + 12 + -7z

Reorder the terms:
6 + 3z = 12 + 9z + -7z

Combine like terms: 9z + -7z = 2z
6 + 3z = 12 + 2z

Solving
6 + 3z = 12 + 2z

Solving for variable 'z'.

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

Add '-2z' to each side of the equation.
6 + 3z + -2z = 12 + 2z + -2z

Combine like terms: 3z + -2z = 1z
6 + 1z = 12 + 2z + -2z

Combine like terms: 2z + -2z = 0
6 + 1z = 12 + 0
6 + 1z = 12

Add '-6' to each side of the equation.
6 + -6 + 1z = 12 + -6

Combine like terms: 6 + -6 = 0
0 + 1z = 12 + -6
1z = 12 + -6

Combine like terms: 12 + -6 = 6
1z = 6

Divide each side by '1'.
z = 6

Simplifying
z = 6

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