Question

x-2y=6 ; 3x-6y=
Solve this sum by using subsitution method

Answer 1

$x - 2 y = 6\\\\then \ 3 x - 6 y = 3( x - 2 y ) \\\\3( x - 2 y ) = 3*6 = 18\\\\hope \ it \ helps \ !!$

Answer 2

Answer:

x-2y=6

multiply each term by 3

3x-6y=12

ans:12