3(u-7)-7=-2(-7u+7)-5u

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Solution for 3(u-7)-7=-2(-7u+7)-5u equation:


Simplifying
3(u + -7) + -7 = -2(-7u + 7) + -5u

Reorder the terms:
3(-7 + u) + -7 = -2(-7u + 7) + -5u
(-7 * 3 + u * 3) + -7 = -2(-7u + 7) + -5u
(-21 + 3u) + -7 = -2(-7u + 7) + -5u

Reorder the terms:
-21 + -7 + 3u = -2(-7u + 7) + -5u

Combine like terms: -21 + -7 = -28
-28 + 3u = -2(-7u + 7) + -5u

Reorder the terms:
-28 + 3u = -2(7 + -7u) + -5u
-28 + 3u = (7 * -2 + -7u * -2) + -5u
-28 + 3u = (-14 + 14u) + -5u

Combine like terms: 14u + -5u = 9u
-28 + 3u = -14 + 9u

Solving
-28 + 3u = -14 + 9u

Solving for variable 'u'.

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

Add '-9u' to each side of the equation.
-28 + 3u + -9u = -14 + 9u + -9u

Combine like terms: 3u + -9u = -6u
-28 + -6u = -14 + 9u + -9u

Combine like terms: 9u + -9u = 0
-28 + -6u = -14 + 0
-28 + -6u = -14

Add '28' to each side of the equation.
-28 + 28 + -6u = -14 + 28

Combine like terms: -28 + 28 = 0
0 + -6u = -14 + 28
-6u = -14 + 28

Combine like terms: -14 + 28 = 14
-6u = 14

Divide each side by '-6'.
u = -2.333333333

Simplifying
u = -2.333333333

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