7u-7=3(u-5)

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


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

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

Reorder the terms:
-7 + 7u = 3(-5 + u)
-7 + 7u = (-5 * 3 + u * 3)
-7 + 7u = (-15 + 3u)

Solving
-7 + 7u = -15 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
-7 + 7u + -3u = -15 + 3u + -3u

Combine like terms: 7u + -3u = 4u
-7 + 4u = -15 + 3u + -3u

Combine like terms: 3u + -3u = 0
-7 + 4u = -15 + 0
-7 + 4u = -15

Add '7' to each side of the equation.
-7 + 7 + 4u = -15 + 7

Combine like terms: -7 + 7 = 0
0 + 4u = -15 + 7
4u = -15 + 7

Combine like terms: -15 + 7 = -8
4u = -8

Divide each side by '4'.
u = -2

Simplifying
u = -2

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