0.8x-3=21

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Solution for 0.8x-3=21 equation: 



0.8x-3=21

We move all terms to the left:

0.8x-3-(21)=0

We add all the numbers together, and all the variables

0.8x-24=0

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

0.8x=24

x=24/0.8

x=30

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