Help PLz!
- Thread starter Rainie
- Start date
Two times a number is the sum of two numbers is 30. Five times the same two numbers is 75. The difference of the two numbers is 9. What are the numbers?
2(x+y)=30
5(x=y)=75
x-y=9
This is as far as i can go
can some one help??
Two times the sum of two numbers is 30 or 2(a + b) = 30
Five times the sum of the same two numbers is 75 or 5(a + b) = 75
The difference between the two numbers is 9 or a - b = 9 or 2a - 2b = 18.
2a + 2b = 30
2a - 2b = 18
I bet you can take it from here.