Question

what 2 numbers add up to 45 then subtract to 5

Answer 1

Answer:

   The sum of two numbers is 45 ---> a+b =45 (1)

the difference is 5 -----> a-b=5 (2)

from (2), we can say: a=5+b

we substitute it in (1) so we get,

(a)+b= (5+b) +b =45

---> 5+2b=45

---> 2b= 40

---> b=40/2=20

so b= 20 and a=5+b = 5+20 =25

a=25

b=20

Step-by-step explanation:

Hope this helps