Answer :
Let's call the first number x, and the second number y. Putting what you have said into equation form:
[tex]x+2y=13 \\\\4x+2y=-2 [/tex]
Subtracting one equation from another gives:
[tex]x+2y=13 \\-(4x+2y=-2) \\\\-3x=15 \\x=-5[/tex]
If x = -5,
[tex]x+2y=13 \\(-5)+2y=13 \\2y=18 \\y=9[/tex]
So the first number is -2, the second number is 9
[tex]x+2y=13 \\\\4x+2y=-2 [/tex]
Subtracting one equation from another gives:
[tex]x+2y=13 \\-(4x+2y=-2) \\\\-3x=15 \\x=-5[/tex]
If x = -5,
[tex]x+2y=13 \\(-5)+2y=13 \\2y=18 \\y=9[/tex]
So the first number is -2, the second number is 9
