The larger

The larger two numbers are nine, more than four times the smaller number. The sum of the two numbers is fifty-nine. Find the two numbers.

Correct answer:

a =  49
b =  10

Step-by-step explanation:


a = 9 + 4b
a+b = 59

a = 9 + 4·b
a+b = 59

a-4b = 9
a+b = 59

Row 2 - Row 1 → Row 2
a-4b = 9
5b = 50


b = 50/5 = 10
a = 9+4b = 9+4 · 10 = 49

a = 49
b = 10

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