1.

2 numbers differ by 3. The Sum of the greater number & twice thesmaller humber is 15 find the numbers​

Answer»

ong>Answer:

LET the greater NUMBER be x and smaller number be y.

so, y = 3 ; x = 6

i hope this helps!!

Step-by-step explanation:

let the greater number be x and smaller number be y.

  • "2 numbers differ by 3"
  • so, it MEANS that when you subtract the smaller number from the greater number, you'll get 3.
  • so we got the first equation; x - y = 3
  • "the sum of the greater number (x) and thrice the smaller number (y) is 15",
  • it means that when you ADD x to 3 times y, you get 15.
  • so the second equation is; x + 3y = 15\\

now, from the first equation, we take y to the other side of =. we now have x = 3+y , let this be the third equation

in the second equation, we substitute x with the third equation and we have (3+y ) + 3y = 15 and we just simplify it.


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