Question

find the solution of pair of linear equation x-3y-7=0,3x-3y-15=0​

Answer 1

Answer:

x = 3y + 7

put the value of x in 2 eq.

3(3y +7) -3y -15=0

9y + 21 -3y -15

6y + 6

y = -1

x -3*-1 -7

x +3 -7=0

x -4=0

x= 4