Question

solve pair of equation 1/2(x-2y)+2/3(x+2y)=5 and -1/3(x-2y)-1/4(x+2y)=6 find x and y
​

Answer 1

Step-by-step explanation:

Plugging the second equation

x

=

6

+

2

y

in the first one we get

1

2

⋅

(

6

+

2

y

)

+

2

y

=

12

1

2

⋅

6

+

1

2

⋅

2

y

+

2

y

=

12

simplifying we get

3

+

y

+

2

y

=

12

3

+

3

y

=

12

so

3

y

=

9

y

=

3

so

x

=

6

+

2

⋅

3

=

6

+

6

=

12