-5u+3(u+7)=23

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Solution for -5u+3(u+7)=23 equation:


Simplifying
-5u + 3(u + 7) = 23

Reorder the terms:
-5u + 3(7 + u) = 23
-5u + (7 * 3 + u * 3) = 23
-5u + (21 + 3u) = 23

Reorder the terms:
21 + -5u + 3u = 23

Combine like terms: -5u + 3u = -2u
21 + -2u = 23

Solving
21 + -2u = 23

Solving for variable 'u'.

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

Add '-21' to each side of the equation.
21 + -21 + -2u = 23 + -21

Combine like terms: 21 + -21 = 0
0 + -2u = 23 + -21
-2u = 23 + -21

Combine like terms: 23 + -21 = 2
-2u = 2

Divide each side by '-2'.
u = -1

Simplifying
u = -1

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