2/3
Step-by-step explanation:
the anwser would be either 2/3 or 1/3
I honestly have no idea :) :S ur welcome
[box] equals 1/2 (i think; check by dividing 0.8 by 0.4 on calculator, or 4/5 divided by 2/5 on fraction calculator... kind of obvious)
1.8=5/5+4/5=9/5
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0.2=1/5
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1.8/0.2=(9/5)/(1/5)=(9/5)*(5/1)=9
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Therefore:
1+[2x-3(1.8/0.2)]
=1+[2x-3(9)]
=1+[2x-27]
=1+2x-27
=2x-26
=2(x-13)