40-3u+2u=19

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Solution for 40-3u+2u=19 equation: 


Simplifying
40 + -3u + 2u = 19

Combine like terms: -3u + 2u = -1u
40 + -1u = 19

Solving
40 + -1u = 19

Solving for variable 'u'.

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

Add '-40' to each side of the equation.
40 + -40 + -1u = 19 + -40

Combine like terms: 40 + -40 = 0
0 + -1u = 19 + -40
-1u = 19 + -40

Combine like terms: 19 + -40 = -21
-1u = -21

Divide each side by '-1'.
u = 21

Simplifying
u = 21

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