3(x-4)-5(2x-1)=21

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Solution for 3(x-4)-5(2x-1)=21 equation: 



3(x-4)-5(2x-1)=21

We move all terms to the left:

3(x-4)-5(2x-1)-(21)=0

We multiply parentheses

3x-10x-12+5-21=0

We add all the numbers together, and all the variables

-7x-28=0

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

-7x=28

x=28/-7

x=-4

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