-15u-(-20u)+-10u=10

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Solution for -15u-(-20u)+-10u=10 equation: 


Simplifying
-15u + -1(-20u) + -10u = 10

Remove parenthesis around (-20u)
-15u + -1 * -20u + -10u = 10

Multiply -1 * -20
-15u + 20u + -10u = 10

Combine like terms: -15u + 20u = 5u
5u + -10u = 10

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

Solving
-5u = 10

Solving for variable 'u'.

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

Divide each side by '-5'.
u = -2

Simplifying
u = -2

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