10-2u=7.8

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Solution for 10-2u=7.8 equation: 


Simplifying
10 + -2u = 7.8

Solving
10 + -2u = 7.8

Solving for variable 'u'.

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

Add '-10' to each side of the equation.
10 + -10 + -2u = 7.8 + -10

Combine like terms: 10 + -10 = 0
0 + -2u = 7.8 + -10
-2u = 7.8 + -10

Combine like terms: 7.8 + -10 = -2.2
-2u = -2.2

Divide each side by '-2'.
u = 1.1

Simplifying
u = 1.1

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