3u=7(u-8)-13

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Solution for 3u=7(u-8)-13 equation:


Simplifying
3u = 7(u + -8) + -13

Reorder the terms:
3u = 7(-8 + u) + -13
3u = (-8 * 7 + u * 7) + -13
3u = (-56 + 7u) + -13

Reorder the terms:
3u = -56 + -13 + 7u

Combine like terms: -56 + -13 = -69
3u = -69 + 7u

Solving
3u = -69 + 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.
3u + -7u = -69 + 7u + -7u

Combine like terms: 3u + -7u = -4u
-4u = -69 + 7u + -7u

Combine like terms: 7u + -7u = 0
-4u = -69 + 0
-4u = -69

Divide each side by '-4'.
u = 17.25

Simplifying
u = 17.25

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