Question

2x+3y=12 x+3y=9 substitution method​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

2x+3y=12 ..............eqn-1

x+3y=9 .............eqn-2

x=(12-3y)/2 ..........eqn-3

Put this eqn-3 in eqn-2,

(12-3y)/2 +3y = 9

12-3y+6y=18

12+3y=18

3y=6

y=2

Now , x+3(2)=9

x=3

So x=3 and y=2