u-4+2(6u+4)=-2(u+7)

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Solution for u-4+2(6u+4)=-2(u+7) equation:


Simplifying
u + -4 + 2(6u + 4) = -2(u + 7)

Reorder the terms:
u + -4 + 2(4 + 6u) = -2(u + 7)
u + -4 + (4 * 2 + 6u * 2) = -2(u + 7)
u + -4 + (8 + 12u) = -2(u + 7)

Reorder the terms:
-4 + 8 + u + 12u = -2(u + 7)

Combine like terms: -4 + 8 = 4
4 + u + 12u = -2(u + 7)

Combine like terms: u + 12u = 13u
4 + 13u = -2(u + 7)

Reorder the terms:
4 + 13u = -2(7 + u)
4 + 13u = (7 * -2 + u * -2)
4 + 13u = (-14 + -2u)

Solving
4 + 13u = -14 + -2u

Solving for variable 'u'.

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

Add '2u' to each side of the equation.
4 + 13u + 2u = -14 + -2u + 2u

Combine like terms: 13u + 2u = 15u
4 + 15u = -14 + -2u + 2u

Combine like terms: -2u + 2u = 0
4 + 15u = -14 + 0
4 + 15u = -14

Add '-4' to each side of the equation.
4 + -4 + 15u = -14 + -4

Combine like terms: 4 + -4 = 0
0 + 15u = -14 + -4
15u = -14 + -4

Combine like terms: -14 + -4 = -18
15u = -18

Divide each side by '15'.
u = -1.2

Simplifying
u = -1.2

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