Question

2x + y = 12 and x+2y = 9​

Answer 1

Answer:

that's the answer. by elimination method.

Step-by-step explanation:

hope it helps ☺

Answer 2

Answer:

2x+y=12

x+2y=9

on addition

3x+3y=21

3(x+y)=21

x+y=7

x=7-y

putting value of x in

2x+y=12

2(7-y)+y=12

14-2y+y=12

14-y=12

y=14-12

y=2

then x= 7-y

x=7-2

x=5

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