-.4=-.8u+.6u

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Solution for -.4=-.8u+.6u equation:


Simplifying
-0.4 = -0.8u + 0.6u

Combine like terms: -0.8u + 0.6u = -0.2u
-0.4 = -0.2u

Solving
-0.4 = -0.2u

Solving for variable 'u'.

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

Add '0.2u' to each side of the equation.
-0.4 + 0.2u = -0.2u + 0.2u

Combine like terms: -0.2u + 0.2u = 0.0
-0.4 + 0.2u = 0.0

Add '0.4' to each side of the equation.
-0.4 + 0.4 + 0.2u = 0.0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 0.2u = 0.0 + 0.4
0.2u = 0.0 + 0.4

Combine like terms: 0.0 + 0.4 = 0.4
0.2u = 0.4

Divide each side by '0.2'.
u = 2

Simplifying
u = 2

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