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

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


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

Reorder the terms:
4u + 4 + -5(-1 + -3u) = 7(u + -1)
4u + 4 + (-1 * -5 + -3u * -5) = 7(u + -1)
4u + 4 + (5 + 15u) = 7(u + -1)

Reorder the terms:
4 + 5 + 4u + 15u = 7(u + -1)

Combine like terms: 4 + 5 = 9
9 + 4u + 15u = 7(u + -1)

Combine like terms: 4u + 15u = 19u
9 + 19u = 7(u + -1)

Reorder the terms:
9 + 19u = 7(-1 + u)
9 + 19u = (-1 * 7 + u * 7)
9 + 19u = (-7 + 7u)

Solving
9 + 19u = -7 + 7u

Solving for variable 'u'.

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

Add '-7u' to each side of the equation.
9 + 19u + -7u = -7 + 7u + -7u

Combine like terms: 19u + -7u = 12u
9 + 12u = -7 + 7u + -7u

Combine like terms: 7u + -7u = 0
9 + 12u = -7 + 0
9 + 12u = -7

Add '-9' to each side of the equation.
9 + -9 + 12u = -7 + -9

Combine like terms: 9 + -9 = 0
0 + 12u = -7 + -9
12u = -7 + -9

Combine like terms: -7 + -9 = -16
12u = -16

Divide each side by '12'.
u = -1.333333333

Simplifying
u = -1.333333333

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