Question

The sum of two numbers is 55. The larger number is five less than twice the smaller number.

Write a system of equations and find the two numbers.

Answer 1

the nr are 20 and 35

Explanation:

55=x+(2x-5)

Answer 2

x=20

y=35

Explanation:

lets say:

x+y=55

2x=y+5

y being the bigger number

dexcribe y in terms of x:

55-x=y

now replace y in the second equation

2x=55-x+5

2x=60-x

3x=60

x=20

so y=35