Math, asked by mN21, 1 year ago

Using cross multiplication solve these

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Answered by Anonymous
1
70 / A-B = 7
10 =A-B ------------1
70/ A+B =1
70 =A+B -----------2
1+2
80 =2A
A=40
and 10 =40 -B
B=40-10=30

mN21: using cross multiplication
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