-3(u-7)=8u-23

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Solution for -3(u-7)=8u-23 equation:


Simplifying
-3(u + -7) = 8u + -23

Reorder the terms:
-3(-7 + u) = 8u + -23
(-7 * -3 + u * -3) = 8u + -23
(21 + -3u) = 8u + -23

Reorder the terms:
21 + -3u = -23 + 8u

Solving
21 + -3u = -23 + 8u

Solving for variable 'u'.

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

Add '-8u' to each side of the equation.
21 + -3u + -8u = -23 + 8u + -8u

Combine like terms: -3u + -8u = -11u
21 + -11u = -23 + 8u + -8u

Combine like terms: 8u + -8u = 0
21 + -11u = -23 + 0
21 + -11u = -23

Add '-21' to each side of the equation.
21 + -21 + -11u = -23 + -21

Combine like terms: 21 + -21 = 0
0 + -11u = -23 + -21
-11u = -23 + -21

Combine like terms: -23 + -21 = -44
-11u = -44

Divide each side by '-11'.
u = 4

Simplifying
u = 4

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