18=8(u-3)-2u

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Solution for 18=8(u-3)-2u equation:


Simplifying
18 = 8(u + -3) + -2u

Reorder the terms:
18 = 8(-3 + u) + -2u
18 = (-3 * 8 + u * 8) + -2u
18 = (-24 + 8u) + -2u

Combine like terms: 8u + -2u = 6u
18 = -24 + 6u

Solving
18 = -24 + 6u

Solving for variable 'u'.

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

Add '-6u' to each side of the equation.
18 + -6u = -24 + 6u + -6u

Combine like terms: 6u + -6u = 0
18 + -6u = -24 + 0
18 + -6u = -24

Add '-18' to each side of the equation.
18 + -18 + -6u = -24 + -18

Combine like terms: 18 + -18 = 0
0 + -6u = -24 + -18
-6u = -24 + -18

Combine like terms: -24 + -18 = -42
-6u = -42

Divide each side by '-6'.
u = 7

Simplifying
u = 7

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