-2u-31=-7(u+3)

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Solution for -2u-31=-7(u+3) equation:


Simplifying
-2u + -31 = -7(u + 3)

Reorder the terms:
-31 + -2u = -7(u + 3)

Reorder the terms:
-31 + -2u = -7(3 + u)
-31 + -2u = (3 * -7 + u * -7)
-31 + -2u = (-21 + -7u)

Solving
-31 + -2u = -21 + -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.
-31 + -2u + 7u = -21 + -7u + 7u

Combine like terms: -2u + 7u = 5u
-31 + 5u = -21 + -7u + 7u

Combine like terms: -7u + 7u = 0
-31 + 5u = -21 + 0
-31 + 5u = -21

Add '31' to each side of the equation.
-31 + 31 + 5u = -21 + 31

Combine like terms: -31 + 31 = 0
0 + 5u = -21 + 31
5u = -21 + 31

Combine like terms: -21 + 31 = 10
5u = 10

Divide each side by '5'.
u = 2

Simplifying
u = 2

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