12z+7=3z-11

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Solution for 12z+7=3z-11 equation:


Simplifying
12z + 7 = 3z + -11

Reorder the terms:
7 + 12z = 3z + -11

Reorder the terms:
7 + 12z = -11 + 3z

Solving
7 + 12z = -11 + 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.
7 + 12z + -3z = -11 + 3z + -3z

Combine like terms: 12z + -3z = 9z
7 + 9z = -11 + 3z + -3z

Combine like terms: 3z + -3z = 0
7 + 9z = -11 + 0
7 + 9z = -11

Add '-7' to each side of the equation.
7 + -7 + 9z = -11 + -7

Combine like terms: 7 + -7 = 0
0 + 9z = -11 + -7
9z = -11 + -7

Combine like terms: -11 + -7 = -18
9z = -18

Divide each side by '9'.
z = -2

Simplifying
z = -2

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