Numbers 74084

I think two numbers. The first is smaller by 30 than the second. The sum of these numbers is 60. What two numbers do I think?

Correct answer:

a =  15
b =  45

Step-by-step explanation:

a=b30 a+b=60  ab=30 a+b=60  Row2Row1Row2 ab=30 2b=90  b=290=45 a=30+b=30+45=15  a=15 b=45

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