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Mathematics, 01.09.2021 15:00 saren47

There are two people one name rob and bob age in ration is 3:4 and y years ago there age was 5:7 find the sum of their ages to be don in linear equation in one variable

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There are two people one name rob and bob age in ration is 3:4 and y years ago there age was 5:7 fin...
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