10.5-0.9Z-1.2=13-2.1Z-7.1

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Solution for 10.5-0.9Z-1.2=13-2.1Z-7.1 equation: 


Simplifying
10.5 + -0.9Z + -1.2 = 13 + -2.1Z + -7.1

Reorder the terms:
10.5 + -1.2 + -0.9Z = 13 + -2.1Z + -7.1

Combine like terms: 10.5 + -1.2 = 9.3
9.3 + -0.9Z = 13 + -2.1Z + -7.1

Reorder the terms:
9.3 + -0.9Z = 13 + -7.1 + -2.1Z

Combine like terms: 13 + -7.1 = 5.9
9.3 + -0.9Z = 5.9 + -2.1Z

Solving
9.3 + -0.9Z = 5.9 + -2.1Z

Solving for variable 'Z'.

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

Add '2.1Z' to each side of the equation.
9.3 + -0.9Z + 2.1Z = 5.9 + -2.1Z + 2.1Z

Combine like terms: -0.9Z + 2.1Z = 1.2Z
9.3 + 1.2Z = 5.9 + -2.1Z + 2.1Z

Combine like terms: -2.1Z + 2.1Z = 0.0
9.3 + 1.2Z = 5.9 + 0.0
9.3 + 1.2Z = 5.9

Add '-9.3' to each side of the equation.
9.3 + -9.3 + 1.2Z = 5.9 + -9.3

Combine like terms: 9.3 + -9.3 = 0.0
0.0 + 1.2Z = 5.9 + -9.3
1.2Z = 5.9 + -9.3

Combine like terms: 5.9 + -9.3 = -3.4
1.2Z = -3.4

Divide each side by '1.2'.
Z = -2.833333333

Simplifying
Z = -2.833333333

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