2u-4+2(5u+9)=-2(u+2)

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Solution for 2u-4+2(5u+9)=-2(u+2) equation:


Simplifying
2u + -4 + 2(5u + 9) = -2(u + 2)

Reorder the terms:
2u + -4 + 2(9 + 5u) = -2(u + 2)
2u + -4 + (9 * 2 + 5u * 2) = -2(u + 2)
2u + -4 + (18 + 10u) = -2(u + 2)

Reorder the terms:
-4 + 18 + 2u + 10u = -2(u + 2)

Combine like terms: -4 + 18 = 14
14 + 2u + 10u = -2(u + 2)

Combine like terms: 2u + 10u = 12u
14 + 12u = -2(u + 2)

Reorder the terms:
14 + 12u = -2(2 + u)
14 + 12u = (2 * -2 + u * -2)
14 + 12u = (-4 + -2u)

Solving
14 + 12u = -4 + -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.
14 + 12u + 2u = -4 + -2u + 2u

Combine like terms: 12u + 2u = 14u
14 + 14u = -4 + -2u + 2u

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

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

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

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

Divide each side by '14'.
u = -1.285714286

Simplifying
u = -1.285714286

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