Question

If (9x-9y)=81. What is (x-y) ?

Answer 1

Answer:

9

Step-by-step explanation:

(9x-9y)=81

9(x-y)=81

x-y=9

Answer 2

Answer:

since 9 is common in LHS

Take 9 out

9 ( x-y) = 81

x-y = 9

therefore the soln is (x-y) = 9