The sum of two numbers is 9 and their difference is 1

Question

I need help

Answer 1

Let x and y be the 2 numbers

x + y=9

but

x - y=1

we solve this by adding the two equations

x + y+(x - y)=9+1

x +x + y - y=10

2x=10

x=5

5+y=9

y=9-5

y=4

The two numbers are 5 and 4

Answer 2

Hi Calen,

I will give you a hint: the two numbers in question are consecutive single-digit numbers.

Answer 3

From this, you can make 2 equations.

Let x = first number

Let y = second number

Sum is addition, difference is subtraction.

x+y=9

x-y=1

There is no question, I imagine you need to solve for these numbers by solving the 2 equations. You can do this by substitution or elimination.