2u+18=7(u+4)

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


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

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

Reorder the terms:
18 + 2u = 7(4 + u)
18 + 2u = (4 * 7 + u * 7)
18 + 2u = (28 + 7u)

Solving
18 + 2u = 28 + 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.
18 + 2u + -7u = 28 + 7u + -7u

Combine like terms: 2u + -7u = -5u
18 + -5u = 28 + 7u + -7u

Combine like terms: 7u + -7u = 0
18 + -5u = 28 + 0
18 + -5u = 28

Add '-18' to each side of the equation.
18 + -18 + -5u = 28 + -18

Combine like terms: 18 + -18 = 0
0 + -5u = 28 + -18
-5u = 28 + -18

Combine like terms: 28 + -18 = 10
-5u = 10

Divide each side by '-5'.
u = -2

Simplifying
u = -2

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