x+3.1=8.7

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Solution for x+3.1=8.7 equation: 


Simplifying
x + 3.1 = 8.7

Reorder the terms:
3.1 + x = 8.7

Solving
3.1 + x = 8.7

Solving for variable 'x'.

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

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

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

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

Simplifying
x = 5.6

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