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31.20+0.12=28.62+0.08x
We move all terms to the left:
31.20+0.12-(28.62+0.08x)=0
We add all the numbers together, and all the variables
-(0.08x+28.62)+31.20+0.12=0
We add all the numbers together, and all the variables
-(0.08x+28.62)+31.32=0
We get rid of parentheses
-0.08x-28.62+31.32=0
We add all the numbers together, and all the variables
-0.08x+2.7=0
We move all terms containing x to the left, all other terms to the right
-0.08x=-2.7
x=-2.7/-0.08
x=33+0.06/0.08
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