8u-42=2u-18

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Solution for 8u-42=2u-18 equation:


Simplifying
8u + -42 = 2u + -18

Reorder the terms:
-42 + 8u = 2u + -18

Reorder the terms:
-42 + 8u = -18 + 2u

Solving
-42 + 8u = -18 + 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.
-42 + 8u + -2u = -18 + 2u + -2u

Combine like terms: 8u + -2u = 6u
-42 + 6u = -18 + 2u + -2u

Combine like terms: 2u + -2u = 0
-42 + 6u = -18 + 0
-42 + 6u = -18

Add '42' to each side of the equation.
-42 + 42 + 6u = -18 + 42

Combine like terms: -42 + 42 = 0
0 + 6u = -18 + 42
6u = -18 + 42

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

Divide each side by '6'.
u = 4

Simplifying
u = 4

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