5(9-5x-3x)+8(3x+9)=21

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Solution for 5(9-5x-3x)+8(3x+9)=21 equation: 



5(9-5x-3x)+8(3x+9)=21

We move all terms to the left:

5(9-5x-3x)+8(3x+9)-(21)=0

We add all the numbers together, and all the variables

5(-8x+9)+8(3x+9)-21=0

We multiply parentheses

-40x+24x+45+72-21=0

We add all the numbers together, and all the variables

-16x+96=0

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

-16x=-96

x=-96/-16

x=+6

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