-3(u+5)=4u+13

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Solution for -3(u+5)=4u+13 equation:


Simplifying
-3(u + 5) = 4u + 13

Reorder the terms:
-3(5 + u) = 4u + 13
(5 * -3 + u * -3) = 4u + 13
(-15 + -3u) = 4u + 13

Reorder the terms:
-15 + -3u = 13 + 4u

Solving
-15 + -3u = 13 + 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
-15 + -3u + -4u = 13 + 4u + -4u

Combine like terms: -3u + -4u = -7u
-15 + -7u = 13 + 4u + -4u

Combine like terms: 4u + -4u = 0
-15 + -7u = 13 + 0
-15 + -7u = 13

Add '15' to each side of the equation.
-15 + 15 + -7u = 13 + 15

Combine like terms: -15 + 15 = 0
0 + -7u = 13 + 15
-7u = 13 + 15

Combine like terms: 13 + 15 = 28
-7u = 28

Divide each side by '-7'.
u = -4

Simplifying
u = -4

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