.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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