7.8-x=6.9

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Solution for 7.8-x=6.9 equation: 


Simplifying
7.8 + -1x = 6.9

Solving
7.8 + -1x = 6.9

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 + -1x = 6.9 + -7.8

Combine like terms: 7.8 + -7.8 = 0.0
0.0 + -1x = 6.9 + -7.8
-1x = 6.9 + -7.8

Combine like terms: 6.9 + -7.8 = -0.9
-1x = -0.9

Divide each side by '-1'.
x = 0.9

Simplifying
x = 0.9

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