9(5x-11)+12(x+9)=-21

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Solution for 9(5x-11)+12(x+9)=-21 equation: 



9(5x-11)+12(x+9)=-21

We move all terms to the left:

9(5x-11)+12(x+9)-(-21)=0

We add all the numbers together, and all the variables

9(5x-11)+12(x+9)+21=0

We multiply parentheses

45x+12x-99+108+21=0

We add all the numbers together, and all the variables

57x+30=0

We move all terms containing x to the left, all other terms to the right

57x=-30

x=-30/57

x=-10/19

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