2x+6.4=21

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Solution for 2x+6.4=21 equation: 



2x+6.4=21

We move all terms to the left:

2x+6.4-(21)=0

We add all the numbers together, and all the variables

2x-14.6=0

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

2x=14.6

x=14.6/2

x=7+0.6/2

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