Question

Simplify 8n.24x-1.16x-y.10x+y-216x.52x+y.9x-1

Answer 1

Explanation:

Equation (1) ×3 :

x+y

30

+

x−y

6

=12

Equation (2) ×2 :

x+y

30

−

x−y

18

=−4

Subtract two equations ;

⇒

x−y

24

=16

⇒x−y=

2

3

Substituting, we get ;

⇒x+y=

4

15

Adding resultant equations;

⇒2x=

4

21

⇒x=

8

21

Substituting 'x' in the above equations, we get ;

⇒y=

8

9