(4x-7)-(9x-3)=21

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Solution for (4x-7)-(9x-3)=21 equation: 



(4x-7)-(9x-3)=21

We move all terms to the left:

(4x-7)-(9x-3)-(21)=0

We get rid of parentheses

4x-9x-7+3-21=0

We add all the numbers together, and all the variables

-5x-25=0

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

-5x=25

x=25/-5

x=-5

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