-5u+42=2(u+7)

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Solution for -5u+42=2(u+7) equation:


Simplifying
-5u + 42 = 2(u + 7)

Reorder the terms:
42 + -5u = 2(u + 7)

Reorder the terms:
42 + -5u = 2(7 + u)
42 + -5u = (7 * 2 + u * 2)
42 + -5u = (14 + 2u)

Solving
42 + -5u = 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.
42 + -5u + -2u = 14 + 2u + -2u

Combine like terms: -5u + -2u = -7u
42 + -7u = 14 + 2u + -2u

Combine like terms: 2u + -2u = 0
42 + -7u = 14 + 0
42 + -7u = 14

Add '-42' to each side of the equation.
42 + -42 + -7u = 14 + -42

Combine like terms: 42 + -42 = 0
0 + -7u = 14 + -42
-7u = 14 + -42

Combine like terms: 14 + -42 = -28
-7u = -28

Divide each side by '-7'.
u = 4

Simplifying
u = 4

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