-3(u+2)=(u+6)+7

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Solution for -3(u+2)=(u+6)+7 equation:


Simplifying
-3(u + 2) = (u + 6) + 7

Reorder the terms:
-3(2 + u) = (u + 6) + 7
(2 * -3 + u * -3) = (u + 6) + 7
(-6 + -3u) = (u + 6) + 7

Reorder the terms:
-6 + -3u = (6 + u) + 7

Remove parenthesis around (6 + u)
-6 + -3u = 6 + u + 7

Reorder the terms:
-6 + -3u = 6 + 7 + u

Combine like terms: 6 + 7 = 13
-6 + -3u = 13 + u

Solving
-6 + -3u = 13 + u

Solving for variable 'u'.

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

Add '-1u' to each side of the equation.
-6 + -3u + -1u = 13 + u + -1u

Combine like terms: -3u + -1u = -4u
-6 + -4u = 13 + u + -1u

Combine like terms: u + -1u = 0
-6 + -4u = 13 + 0
-6 + -4u = 13

Add '6' to each side of the equation.
-6 + 6 + -4u = 13 + 6

Combine like terms: -6 + 6 = 0
0 + -4u = 13 + 6
-4u = 13 + 6

Combine like terms: 13 + 6 = 19
-4u = 19

Divide each side by '-4'.
u = -4.75

Simplifying
u = -4.75

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