Question

3x+y=3 ; 9x+y=3 solve by substitution method .
Fast my paper is thier​

Answer 1

Answer:

Step-by-step explanation:

3x+y=3

x=3-y/3

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

9-3y+y=3

9-2y=3

-2y=-6

y=3

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