Grandfather and grandmother

The old mother is 5 years younger than the old father. Together they are 153 years old. How many years has each of them?

Correct result:

a =  74
b =  79

Solution:


a=b-5
a+b=153

a-b = -5
a+b = 153

a = 74
b = 79

Our linear equations calculator calculates it.



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