2u-42=7(u-1)

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Solution for 2u-42=7(u-1) equation:


Simplifying
2u + -42 = 7(u + -1)

Reorder the terms:
-42 + 2u = 7(u + -1)

Reorder the terms:
-42 + 2u = 7(-1 + u)
-42 + 2u = (-1 * 7 + u * 7)
-42 + 2u = (-7 + 7u)

Solving
-42 + 2u = -7 + 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.
-42 + 2u + -7u = -7 + 7u + -7u

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

Combine like terms: 7u + -7u = 0
-42 + -5u = -7 + 0
-42 + -5u = -7

Add '42' to each side of the equation.
-42 + 42 + -5u = -7 + 42

Combine like terms: -42 + 42 = 0
0 + -5u = -7 + 42
-5u = -7 + 42

Combine like terms: -7 + 42 = 35
-5u = 35

Divide each side by '-5'.
u = -7

Simplifying
u = -7

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