3.1=2x+8.7

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Solution for 3.1=2x+8.7 equation: 


Simplifying
3.1 = 2x + 8.7

Reorder the terms:
3.1 = 8.7 + 2x

Solving
3.1 = 8.7 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
3.1 + -2x = 8.7 + 2x + -2x

Combine like terms: 2x + -2x = 0
3.1 + -2x = 8.7 + 0
3.1 + -2x = 8.7

Add '-3.1' to each side of the equation.
3.1 + -3.1 + -2x = 8.7 + -3.1

Combine like terms: 3.1 + -3.1 = 0.0
0.0 + -2x = 8.7 + -3.1
-2x = 8.7 + -3.1

Combine like terms: 8.7 + -3.1 = 5.6
-2x = 5.6

Divide each side by '-2'.
x = -2.8

Simplifying
x = -2.8

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