Question

Ifa - -20 and 6 – -30 Find a + b and a – b. h​

Answer 1

Your question wasn't clear, so I picked the numbers up from what I could.

Answer:

A + B = -50

A - B = 10

Explanation:

A + B

(-20) + (-30)

= -50

A - B

(-20) - (-30)

= 10

Answer 2

a+b=-30 and a-b=10

Explanation:

a= -20

b= -30

a+b

-20+(-30)

-20-30

-50

a-b

-20-(-30)

-20+30

10