18=-4u+2(u+7)

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Solution for 18=-4u+2(u+7) equation:


Simplifying
18 = -4u + 2(u + 7)

Reorder the terms:
18 = -4u + 2(7 + u)
18 = -4u + (7 * 2 + u * 2)
18 = -4u + (14 + 2u)

Reorder the terms:
18 = 14 + -4u + 2u

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

Solving
18 = 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.
18 + 2u = 14 + -2u + 2u

Combine like terms: -2u + 2u = 0
18 + 2u = 14 + 0
18 + 2u = 14

Add '-18' to each side of the equation.
18 + -18 + 2u = 14 + -18

Combine like terms: 18 + -18 = 0
0 + 2u = 14 + -18
2u = 14 + -18

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

Divide each side by '2'.
u = -2

Simplifying
u = -2

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