13u+18u-18u+-1=12

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Solution for 13u+18u-18u+-1=12 equation:


Simplifying
13u + 18u + -18u + -1 = 12

Reorder the terms:
-1 + 13u + 18u + -18u = 12

Combine like terms: 13u + 18u = 31u
-1 + 31u + -18u = 12

Combine like terms: 31u + -18u = 13u
-1 + 13u = 12

Solving
-1 + 13u = 12

Solving for variable 'u'.

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

Add '1' to each side of the equation.
-1 + 1 + 13u = 12 + 1

Combine like terms: -1 + 1 = 0
0 + 13u = 12 + 1
13u = 12 + 1

Combine like terms: 12 + 1 = 13
13u = 13

Divide each side by '13'.
u = 1

Simplifying
u = 1

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