Question

x+3y =6 and 2x+3y=12 subsitutional method​

Answer 1

x+3y=6. 1eq

2x+3y=12. 2 eq

add both the eqn

3x=18

x=18/3

x=6

put x=6in eqn 1

x+3y=6

6+3y=6

3y=6-6

3y=0

y=-3

is the may this helps u mark me as brainlist