8x+3=2x=21

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



8x+3=2x=21

We move all terms to the left:

8x+3-(2x)=0

We add all the numbers together, and all the variables

6x+3=0

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

6x=-3

x=-3/6

x=-1/2

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