x+1.2-3.1=7

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Solution for x+1.2-3.1=7 equation: 


Simplifying
x + 1.2 + -3.1 = 7

Reorder the terms:
1.2 + -3.1 + x = 7

Combine like terms: 1.2 + -3.1 = -1.9
-1.9 + x = 7

Solving
-1.9 + x = 7

Solving for variable 'x'.

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

Add '1.9' to each side of the equation.
-1.9 + 1.9 + x = 7 + 1.9

Combine like terms: -1.9 + 1.9 = 0.0
0.0 + x = 7 + 1.9
x = 7 + 1.9

Combine like terms: 7 + 1.9 = 8.9
x = 8.9

Simplifying
x = 8.9

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