2[u+1]+7=3[u-2]+2u

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Solution for 2[u+1]+7=3[u-2]+2u equation:


Simplifying
2[u + 1] + 7 = 3[u + -2] + 2u

Reorder the terms:
2[1 + u] + 7 = 3[u + -2] + 2u
[1 * 2 + u * 2] + 7 = 3[u + -2] + 2u
[2 + 2u] + 7 = 3[u + -2] + 2u

Reorder the terms:
2 + 7 + 2u = 3[u + -2] + 2u

Combine like terms: 2 + 7 = 9
9 + 2u = 3[u + -2] + 2u

Reorder the terms:
9 + 2u = 3[-2 + u] + 2u
9 + 2u = [-2 * 3 + u * 3] + 2u
9 + 2u = [-6 + 3u] + 2u

Combine like terms: 3u + 2u = 5u
9 + 2u = -6 + 5u

Solving
9 + 2u = -6 + 5u

Solving for variable 'u'.

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

Add '-5u' to each side of the equation.
9 + 2u + -5u = -6 + 5u + -5u

Combine like terms: 2u + -5u = -3u
9 + -3u = -6 + 5u + -5u

Combine like terms: 5u + -5u = 0
9 + -3u = -6 + 0
9 + -3u = -6

Add '-9' to each side of the equation.
9 + -9 + -3u = -6 + -9

Combine like terms: 9 + -9 = 0
0 + -3u = -6 + -9
-3u = -6 + -9

Combine like terms: -6 + -9 = -15
-3u = -15

Divide each side by '-3'.
u = 5

Simplifying
u = 5

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