u+(-11u)+(-2u)+15u=-9

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Solution for u+(-11u)+(-2u)+15u=-9 equation:


u+(-11u)+(-2u)+15u=-9

We simplify the equation to the form, which is simple to understand 
u+(-11u)+(-2u)+15u=-9

Remove unnecessary parentheses
+u-11u+(-2u+)+15u=-9

Remove unnecessary parentheses
+u-11u-2u+15u=-9

We move all terms containing u to the left and all other terms to the right. 
+1u-11u-2u+15u=-9

We simplify left and right side of the equation. 
+3u=-9

We divide both sides of the equation by 3 to get u. 
u=-3

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