So here is the question the sum of two numbers is 12 the difference between 3times of the first number and 5times of the second is 12 what are the numbers? could you teach it to me. step by step? pretty please? :

Question

So here is the question the sum of two numbers is 12 the difference between 3times of the first number and 5times of the second is 12 what are the numbers? could you teach it to me. step by step? pretty please? :>

anonymous · Answer

first no is 9 and second no is 3

anonymous · Answer

let x,  y be the two no so according to ur question 
x+y=12
3x-5y=12
now solve the both equation and get the ans

anonymous · Answer

How?

anonymous · Answer

x+y=12
x=12-y
Using the second equation:
3(12-y)- 5y = 12
Solve the preceding equation for y.
Plug that value of y into the first equation to solve for x.

anonymous · Answer

ohgord. i got it, thank you! so much

anonymous · Answer

Your welcome.