7u-3u-3=17

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Solution for 7u-3u-3=17 equation: 


Simplifying
7u + -3u + -3 = 17

Reorder the terms:
-3 + 7u + -3u = 17

Combine like terms: 7u + -3u = 4u
-3 + 4u = 17

Solving
-3 + 4u = 17

Solving for variable 'u'.

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

Add '3' to each side of the equation.
-3 + 3 + 4u = 17 + 3

Combine like terms: -3 + 3 = 0
0 + 4u = 17 + 3
4u = 17 + 3

Combine like terms: 17 + 3 = 20
4u = 20

Divide each side by '4'.
u = 5

Simplifying
u = 5

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