8x-3+2x+4=21

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Solution for 8x-3+2x+4=21 equation: 



8x-3+2x+4=21

We move all terms to the left:

8x-3+2x+4-(21)=0

We add all the numbers together, and all the variables

10x-20=0

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

10x=20

x=20/10

x=2

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