-29=3u+7(u+3)

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Solution for -29=3u+7(u+3) equation:


Simplifying
-29 = 3u + 7(u + 3)

Reorder the terms:
-29 = 3u + 7(3 + u)
-29 = 3u + (3 * 7 + u * 7)
-29 = 3u + (21 + 7u)

Reorder the terms:
-29 = 21 + 3u + 7u

Combine like terms: 3u + 7u = 10u
-29 = 21 + 10u

Solving
-29 = 21 + 10u

Solving for variable 'u'.

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

Add '-10u' to each side of the equation.
-29 + -10u = 21 + 10u + -10u

Combine like terms: 10u + -10u = 0
-29 + -10u = 21 + 0
-29 + -10u = 21

Add '29' to each side of the equation.
-29 + 29 + -10u = 21 + 29

Combine like terms: -29 + 29 = 0
0 + -10u = 21 + 29
-10u = 21 + 29

Combine like terms: 21 + 29 = 50
-10u = 50

Divide each side by '-10'.
u = -5

Simplifying
u = -5

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