29.8-4u=4.2

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Solution for 29.8-4u=4.2 equation: 


Simplifying
29.8 + -4u = 4.2

Solving
29.8 + -4u = 4.2

Solving for variable 'u'.

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

Add '-29.8' to each side of the equation.
29.8 + -29.8 + -4u = 4.2 + -29.8

Combine like terms: 29.8 + -29.8 = 0.0
0.0 + -4u = 4.2 + -29.8
-4u = 4.2 + -29.8

Combine like terms: 4.2 + -29.8 = -25.6
-4u = -25.6

Divide each side by '-4'.
u = 6.4

Simplifying
u = 6.4

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