x-7.8=-3.9

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Solution for x-7.8=-3.9 equation: 


Simplifying
x + -7.8 = -3.9

Reorder the terms:
-7.8 + x = -3.9

Solving
-7.8 + x = -3.9

Solving for variable 'x'.

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

Add '7.8' to each side of the equation.
-7.8 + 7.8 + x = -3.9 + 7.8

Combine like terms: -7.8 + 7.8 = 0.0
0.0 + x = -3.9 + 7.8
x = -3.9 + 7.8

Combine like terms: -3.9 + 7.8 = 3.9
x = 3.9

Simplifying
x = 3.9

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