2u-31=9(u+2)

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Solution for 2u-31=9(u+2) equation:


Simplifying
2u + -31 = 9(u + 2)

Reorder the terms:
-31 + 2u = 9(u + 2)

Reorder the terms:
-31 + 2u = 9(2 + u)
-31 + 2u = (2 * 9 + u * 9)
-31 + 2u = (18 + 9u)

Solving
-31 + 2u = 18 + 9u

Solving for variable 'u'.

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

Add '-9u' to each side of the equation.
-31 + 2u + -9u = 18 + 9u + -9u

Combine like terms: 2u + -9u = -7u
-31 + -7u = 18 + 9u + -9u

Combine like terms: 9u + -9u = 0
-31 + -7u = 18 + 0
-31 + -7u = 18

Add '31' to each side of the equation.
-31 + 31 + -7u = 18 + 31

Combine like terms: -31 + 31 = 0
0 + -7u = 18 + 31
-7u = 18 + 31

Combine like terms: 18 + 31 = 49
-7u = 49

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

Simplifying
u = -7

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