Question

Give solutions of 3x+y-12 and x-3y =-6​

Answer 1

Answer:

x=-3 and y= -3

Step-by-step explanation:

3x+y=12 -----[i]

x-3y=-6 ------[ii]

multiply equation [i] by 3

9x+3y=36------[iii]

adding equation [iii] and[ii]

9x+3y=36

+ x-3y=-6

=10x = 30

x= 3

put a value of Xin equation [ii]

3-3y= -6

-3y= -6-3

-3y= -9

y=3

Answer 2

Answer:

Answer in attachment dear