Question

x/2+y/3=8and5x/4-3y=-3​

Answer 1

x

=

−

26

7

,

y

=

36

7

Explanation:

Multiplying the first equation by  

5

and the second one by  

−

2

we obtain

7

y

=

36

so

y

=

36

7

plugging this in the second equation we get

5

x

+

4

⋅

26

7

=

2

so

5

x

=

2

−

4

⋅

36

7

note that  

2

−

4

⋅

36

7

=

−

130

7

so

x

=

−

26

7