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brilliants [131]
3 years ago
10

Help? anything will help thanks

Mathematics
1 answer:
dexar [7]3 years ago
6 0
I think the mistake is the third step is 3/4x+1/2x then you have to find the common denominator which 4 so next they would have to do 3/4x + 4/4x which is 7/4x
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Step-by-step explanation:

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