-2x+2.8=12

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Solution for -2x+2.8=12 equation: 


Simplifying
-2x + 2.8 = 12

Reorder the terms:
2.8 + -2x = 12

Solving
2.8 + -2x = 12

Solving for variable 'x'.

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

Add '-2.8' to each side of the equation.
2.8 + -2.8 + -2x = 12 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + -2x = 12 + -2.8
-2x = 12 + -2.8

Combine like terms: 12 + -2.8 = 9.2
-2x = 9.2

Divide each side by '-2'.
x = -4.6

Simplifying
x = -4.6

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