Answer:
one number x= 16
other number y = 4
Step-by-step explanation:
Lets say two number x and y
x + y = 20
3x - 2y = 40
solve for x first
first equation you get
y = 20 - x
now plug into second equation
3x - 2(20 - x) = 40
3x - 40 + 2x = 40; add x's and add 40 to both sides
5x = 80; divide by 5
x = 16; now plug this into the first equation
x + y = 20
16 + y = 20; subtract 16 to both sides
y = 4
now check into original equations
x + y = 20 ; 16 + 4 = 20; true
3x - 2y = 40; 3(16) - 2(4) = 40 ; 40 - 8 = 40; true
