5x-3+2x=4x-21

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Solution for 5x-3+2x=4x-21 equation: 



5x-3+2x=4x-21

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

7x-4x+21-3=0

We add all the numbers together, and all the variables

3x+18=0

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

3x=-18

x=-18/3

x=-6

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