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0.5x+0.3(20-2x)=0.25
We move all terms to the left:
0.5x+0.3(20-2x)-(0.25)=0
We add all the numbers together, and all the variables
0.5x+0.3(-2x+20)-(0.25)=0
We add all the numbers together, and all the variables
0.5x+0.3(-2x+20)-0.25=0
We multiply parentheses
0.5x-0.6x+6-0.25=0
We add all the numbers together, and all the variables
-0.1x+5.75=0
We move all terms containing x to the left, all other terms to the right
-0.1x=-5.75
x=-5.75/-0.1
x=57+0.05/0.1
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