19=4+3u

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Solution for 19=4+3u equation:


Simplifying
19 = 4 + 3u

Solving
19 = 4 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
19 + -3u = 4 + 3u + -3u

Combine like terms: 3u + -3u = 0
19 + -3u = 4 + 0
19 + -3u = 4

Add '-19' to each side of the equation.
19 + -19 + -3u = 4 + -19

Combine like terms: 19 + -19 = 0
0 + -3u = 4 + -19
-3u = 4 + -19

Combine like terms: 4 + -19 = -15
-3u = -15

Divide each side by '-3'.
u = 5

Simplifying
u = 5

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