Question

3x+3y=12;2x+4y=12 by substition method​

Answer 1

Step-by-step explanation:

3x+3y=12. ( multiplying the eq by 2) - 1eq

2x+4y=12 (multiplying the eq by 3) - 2eq

6x+6y=24

6x+12y=36

- - - ( opposting the sign in the second eq)

-6y=-12

y=2

putting it in eq 1

3x + 6=12

3x=6

X =2