(3u-5)7=7+7u

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Solution for (3u-5)7=7+7u equation:


Simplifying
(3u + -5) * 7 = 7 + 7u

Reorder the terms:
(-5 + 3u) * 7 = 7 + 7u

Reorder the terms for easier multiplication:
7(-5 + 3u) = 7 + 7u
(-5 * 7 + 3u * 7) = 7 + 7u
(-35 + 21u) = 7 + 7u

Solving
-35 + 21u = 7 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
-35 + 21u + -7u = 7 + 7u + -7u

Combine like terms: 21u + -7u = 14u
-35 + 14u = 7 + 7u + -7u

Combine like terms: 7u + -7u = 0
-35 + 14u = 7 + 0
-35 + 14u = 7

Add '35' to each side of the equation.
-35 + 35 + 14u = 7 + 35

Combine like terms: -35 + 35 = 0
0 + 14u = 7 + 35
14u = 7 + 35

Combine like terms: 7 + 35 = 42
14u = 42

Divide each side by '14'.
u = 3

Simplifying
u = 3

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