15.2x+42.8-21.1x+28.1=

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Solution for 15.2x+42.8-21.1x+28.1= equation: 


Simplifying
15.2x + 42.8 + -21.1x + 28.1 = 0

Reorder the terms:
42.8 + 28.1 + 15.2x + -21.1x = 0

Combine like terms: 42.8 + 28.1 = 70.9
70.9 + 15.2x + -21.1x = 0

Combine like terms: 15.2x + -21.1x = -5.9x
70.9 + -5.9x = 0

Solving
70.9 + -5.9x = 0

Solving for variable 'x'.

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

Add '-70.9' to each side of the equation.
70.9 + -70.9 + -5.9x = 0 + -70.9

Combine like terms: 70.9 + -70.9 = 0.0
0.0 + -5.9x = 0 + -70.9
-5.9x = 0 + -70.9

Combine like terms: 0 + -70.9 = -70.9
-5.9x = -70.9

Divide each side by '-5.9'.
x = 12.01694915

Simplifying
x = 12.01694915

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