-6.9z+5.44+15.9z=7.2z-12.74

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Solution for -6.9z+5.44+15.9z=7.2z-12.74 equation: 


Simplifying
-6.9z + 5.44 + 15.9z = 7.2z + -12.74

Reorder the terms:
5.44 + -6.9z + 15.9z = 7.2z + -12.74

Combine like terms: -6.9z + 15.9z = 9z
5.44 + 9z = 7.2z + -12.74

Reorder the terms:
5.44 + 9z = -12.74 + 7.2z

Solving
5.44 + 9z = -12.74 + 7.2z

Solving for variable 'z'.

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

Add '-7.2z' to each side of the equation.
5.44 + 9z + -7.2z = -12.74 + 7.2z + -7.2z

Combine like terms: 9z + -7.2z = 1.8z
5.44 + 1.8z = -12.74 + 7.2z + -7.2z

Combine like terms: 7.2z + -7.2z = 0.0
5.44 + 1.8z = -12.74 + 0.0
5.44 + 1.8z = -12.74

Add '-5.44' to each side of the equation.
5.44 + -5.44 + 1.8z = -12.74 + -5.44

Combine like terms: 5.44 + -5.44 = 0.00
0.00 + 1.8z = -12.74 + -5.44
1.8z = -12.74 + -5.44

Combine like terms: -12.74 + -5.44 = -18.18
1.8z = -18.18

Divide each side by '1.8'.
z = -10.1

Simplifying
z = -10.1

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