The sum of two positive numbers a & b is 820.If a-b=80, find the values of a & b
I am confused in this sum. help...
a+b=820 --1)
a-b=80--2)
Now , we will add equation 1 and 2.
a+b+a-b=820+80
2a=900
a=900/2=450
a=450
now we will find b
a+b=820
i.e. 450+b=820
b=820-450
b=370
Therefore,a=450 and b=370