7+2z-1=9z+12-6z

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Solution for 7+2z-1=9z+12-6z equation:


Simplifying
7 + 2z + -1 = 9z + 12 + -6z

Reorder the terms:
7 + -1 + 2z = 9z + 12 + -6z

Combine like terms: 7 + -1 = 6
6 + 2z = 9z + 12 + -6z

Reorder the terms:
6 + 2z = 12 + 9z + -6z

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

Solving
6 + 2z = 12 + 3z

Solving for variable 'z'.

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

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

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

Combine like terms: 3z + -3z = 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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