Question

X+2y = 21; 2x - 3y= 10​

Answer 1

Answer:

then y from above expression will be −3.

Explanation:

Given equations are 2x−3y=19 and 3x−2y=21

By substitution method , we will substitute y from first equation in y of second equation.

Now from first equation y=(2x−19)/3

so substitute the value of y in the second equation therefore,

Second equation becomes: 3x−

3

2(2x−19)

=21

x=5

Answer 2

Explanation:

this question's answer is x= 83/7 and y= 32/7