5x+21-9x=5-21

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Solution for 5x+21-9x=5-21 equation: 



5x+21-9x=5-21

We move all terms to the left:

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

We add all the numbers together, and all the variables

5x-9x+21-(-16)=0

We add all the numbers together, and all the variables

-4x+37=0

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

-4x=-37

x=-37/-4

x=9+1/4

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