7u+18-2u=3u+u

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Solution for 7u+18-2u=3u+u equation:


Simplifying
7u + 18 + -2u = 3u + u

Reorder the terms:
18 + 7u + -2u = 3u + u

Combine like terms: 7u + -2u = 5u
18 + 5u = 3u + u

Combine like terms: 3u + u = 4u
18 + 5u = 4u

Solving
18 + 5u = 4u

Solving for variable 'u'.

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

Add '-4u' to each side of the equation.
18 + 5u + -4u = 4u + -4u

Combine like terms: 5u + -4u = 1u
18 + 1u = 4u + -4u

Combine like terms: 4u + -4u = 0
18 + 1u = 0

Add '-18' to each side of the equation.
18 + -18 + 1u = 0 + -18

Combine like terms: 18 + -18 = 0
0 + 1u = 0 + -18
1u = 0 + -18

Combine like terms: 0 + -18 = -18
1u = -18

Divide each side by '1'.
u = -18

Simplifying
u = -18

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