-10u+21=-12u-9

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Solution for -10u+21=-12u-9 equation:


-10u+21=-12u-9

We simplify the equation to the form, which is simple to understand 
-10u+21=-12u-9

We move all terms containing u to the left and all other terms to the right. 
-10u+12u=-9-21

We simplify left and right side of the equation. 
+2u=-30

We divide both sides of the equation by 2 to get u. 
u=-15

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