3(u+7)-8u=6

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Solution for 3(u+7)-8u=6 equation:


Simplifying
3(u + 7) + -8u = 6

Reorder the terms:
3(7 + u) + -8u = 6
(7 * 3 + u * 3) + -8u = 6
(21 + 3u) + -8u = 6

Combine like terms: 3u + -8u = -5u
21 + -5u = 6

Solving
21 + -5u = 6

Solving for variable 'u'.

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

Add '-21' to each side of the equation.
21 + -21 + -5u = 6 + -21

Combine like terms: 21 + -21 = 0
0 + -5u = 6 + -21
-5u = 6 + -21

Combine like terms: 6 + -21 = -15
-5u = -15

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

Simplifying
u = 3

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