3(u-7)=5u-7

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


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

Reorder the terms:
3(-7 + u) = 5u + -7
(-7 * 3 + u * 3) = 5u + -7
(-21 + 3u) = 5u + -7

Reorder the terms:
-21 + 3u = -7 + 5u

Solving
-21 + 3u = -7 + 5u

Solving for variable 'u'.

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

Add '-5u' to each side of the equation.
-21 + 3u + -5u = -7 + 5u + -5u

Combine like terms: 3u + -5u = -2u
-21 + -2u = -7 + 5u + -5u

Combine like terms: 5u + -5u = 0
-21 + -2u = -7 + 0
-21 + -2u = -7

Add '21' to each side of the equation.
-21 + 21 + -2u = -7 + 21

Combine like terms: -21 + 21 = 0
0 + -2u = -7 + 21
-2u = -7 + 21

Combine like terms: -7 + 21 = 14
-2u = 14

Divide each side by '-2'.
u = -7

Simplifying
u = -7

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