5+3u-7=20

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Solution for 5+3u-7=20 equation: 


Simplifying
5 + 3u + -7 = 20

Reorder the terms:
5 + -7 + 3u = 20

Combine like terms: 5 + -7 = -2
-2 + 3u = 20

Solving
-2 + 3u = 20

Solving for variable 'u'.

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

Add '2' to each side of the equation.
-2 + 2 + 3u = 20 + 2

Combine like terms: -2 + 2 = 0
0 + 3u = 20 + 2
3u = 20 + 2

Combine like terms: 20 + 2 = 22
3u = 22

Divide each side by '3'.
u = 7.333333333

Simplifying
u = 7.333333333

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