Question

if a minus b is equal to 20 and a + b is equal to 60 find the numbers​

Answer 1

Step-by-step explanation:

a-b = 20

a+ b = 60

a-b+a+b = 80

2a = 80

a = 80/2

a = 40

a +b = 60

40 +b = 60

b= 60-40

b = 20

Answer 2

Step-by-step explanation:

a-b=20 1

a+b=60 11

adding 1 and 11

2a=80

a=40

b=60-a

b=20