7u+5-4(-3u-1)=3(u-1)

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Solution for 7u+5-4(-3u-1)=3(u-1) equation:


Simplifying
7u + 5 + -4(-3u + -1) = 3(u + -1)

Reorder the terms:
7u + 5 + -4(-1 + -3u) = 3(u + -1)
7u + 5 + (-1 * -4 + -3u * -4) = 3(u + -1)
7u + 5 + (4 + 12u) = 3(u + -1)

Reorder the terms:
5 + 4 + 7u + 12u = 3(u + -1)

Combine like terms: 5 + 4 = 9
9 + 7u + 12u = 3(u + -1)

Combine like terms: 7u + 12u = 19u
9 + 19u = 3(u + -1)

Reorder the terms:
9 + 19u = 3(-1 + u)
9 + 19u = (-1 * 3 + u * 3)
9 + 19u = (-3 + 3u)

Solving
9 + 19u = -3 + 3u

Solving for variable 'u'.

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

Add '-3u' to each side of the equation.
9 + 19u + -3u = -3 + 3u + -3u

Combine like terms: 19u + -3u = 16u
9 + 16u = -3 + 3u + -3u

Combine like terms: 3u + -3u = 0
9 + 16u = -3 + 0
9 + 16u = -3

Add '-9' to each side of the equation.
9 + -9 + 16u = -3 + -9

Combine like terms: 9 + -9 = 0
0 + 16u = -3 + -9
16u = -3 + -9

Combine like terms: -3 + -9 = -12
16u = -12

Divide each side by '16'.
u = -0.75

Simplifying
u = -0.75

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