.5x+.7=21

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Solution for .5x+.7=21 equation: 



.5x+.7=21

We move all terms to the left:

.5x+.7-(21)=0

We add all the numbers together, and all the variables

.5x-20.3=0

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

.5x=20.3

x=20.3/.5

x=40+0.3/.5

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