Question

If (a - b) is 9 more than (c + d) and (a + b) is 3 less than (c- d).then (a -c)
is: *

6
2
None of these
3​

Answer 1

Answer:

(a-b) +9= (c+d)

a-b + 9 = c + d

a-b-c-d= -9..... (1)

(a+b) -3= (c-d)

a+b-3 = c-d

a+b-c+d= 3..... (2)

-a+b+c+d= 9

a+b-c+d= 3

_________

-2a+2c= 6

-2(a-c) =6

a-c = -3