3(u-1)=7u-7

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Solution for 3(u-1)=7u-7 equation:


Simplifying
3(u + -1) = 7u + -7

Reorder the terms:
3(-1 + u) = 7u + -7
(-1 * 3 + u * 3) = 7u + -7
(-3 + 3u) = 7u + -7

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

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

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

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

Add '3' to each side of the equation.
-3 + 3 + -4u = -7 + 3

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

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

Divide each side by '-4'.
u = 1

Simplifying
u = 1

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