Question

one number plus twice another number, gives a sum of 42, the difference of these same two numbers equals -3.

*what are the two numbers?

Answer 1

a+2b = 42
a-b = -3 ---> a = -3+b
(-3+b) +2b = 42 ----> b= 15
a= -3 + (15) = 12

Check: 12+ 2(15) = 42 ? Yes

12 - 15 = -3 ? yes

Answer 2

so what are the two numbers?

Answer 3

If you do the work shown above and actually read the solution then you should be able to figure it out... especially since i wrote the answer up there...

Answer 4

ty