Question 169043
The sum of 2 numbers is 68. If the larger number is divided by the smaller, the quotient is 7 and the remainder is 4. What is the larger number? 
Thanks, in advance.
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b = big number
s = small number
b+s = 68
b/s = 7 with rem 4 means that 7*s + 4 = b
b = 7s+4
Substitute for b in the 1 equation
b+s = 68
7s+4 + s = 68
8s + 4 = 68
8s = 64
s = 8, so 
b = 60  That's what was asked for.