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0.2(30)-0.2(x)+1x=0.4(30)
We move all terms to the left:
0.2(30)-0.2(x)+1x-(0.4(30))=0
We add all the numbers together, and all the variables
-0.2x+1x+0.230-(0.43)=0
We add all the numbers together, and all the variables
0.8x-0.2=0
We move all terms containing x to the left, all other terms to the right
0.8x=0.2
x=0.2/0.8
x=0.2/0.8
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