12=-4+8z

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Solution for 12=-4+8z equation:


Simplifying
12 = -4 + 8z

Solving
12 = -4 + 8z

Solving for variable 'z'.

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

Add '-8z' to each side of the equation.
12 + -8z = -4 + 8z + -8z

Combine like terms: 8z + -8z = 0
12 + -8z = -4 + 0
12 + -8z = -4

Add '-12' to each side of the equation.
12 + -12 + -8z = -4 + -12

Combine like terms: 12 + -12 = 0
0 + -8z = -4 + -12
-8z = -4 + -12

Combine like terms: -4 + -12 = -16
-8z = -16

Divide each side by '-8'.
z = 2

Simplifying
z = 2

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