3z+12-.8z=3.4-.8z-9.4

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Solution for 3z+12-.8z=3.4-.8z-9.4 equation:


Simplifying
3z + 12 + -0.8z = 3.4 + -0.8z + -9.4

Reorder the terms:
12 + 3z + -0.8z = 3.4 + -0.8z + -9.4

Combine like terms: 3z + -0.8z = 2.2z
12 + 2.2z = 3.4 + -0.8z + -9.4

Reorder the terms:
12 + 2.2z = 3.4 + -9.4 + -0.8z

Combine like terms: 3.4 + -9.4 = -6
12 + 2.2z = -6 + -0.8z

Solving
12 + 2.2z = -6 + -0.8z

Solving for variable 'z'.

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

Add '0.8z' to each side of the equation.
12 + 2.2z + 0.8z = -6 + -0.8z + 0.8z

Combine like terms: 2.2z + 0.8z = 3z
12 + 3z = -6 + -0.8z + 0.8z

Combine like terms: -0.8z + 0.8z = 0.0
12 + 3z = -6 + 0.0
12 + 3z = -6

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

Combine like terms: 12 + -12 = 0
0 + 3z = -6 + -12
3z = -6 + -12

Combine like terms: -6 + -12 = -18
3z = -18

Divide each side by '3'.
z = -6

Simplifying
z = -6

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