Question

A&B = 400
B-A = -90
A-B = ?​

Answer 1

Answer:

90

Step-by-step explanation:

Given

A + B = -100---(1

B - A = -90

A - B = 90------(2

on adding ---(1 and ----(2

2A = 10

A = 5

since

A - B = 90

so

B = -85

So

A - B = 5 +85 = 90

Answer 2

Answer:

a+b=-100 .1

b-a=-90 .2

adding.1and 2

2b=-190

b=-95

a=-100+95

a=-5

a-b=-5-(-90)=-5+90=85