Question 553051
Sub in a variables name for "one number" and "another number" and the question gets clearer: 
a added to twice b is 13.
a+2b=13

Four times a added to twice b is -2

4a+2b=-2



Which gives me this system of equations
4a+2b=-2
a+2b=13

I'm going to subtract using the elimination method

3a=-15 (since 2b-2b cancels out)

a=-5

plug -5 in for a

-5+2b=13
2b=18
b=9