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put this solution on YOUR website!y = 3x
(0, ____) (-1,____) (7,____)
0, -1, and 7 represent x values. To find the corresponding y values, simply plug in those values for x into the original equation.
1. Start with
Plug in 0
Simplify

So when x=0, y=0. (0,0)
2. Start with
plug in -1
Simplify

So when x=-1, y=3. (-1,-3)
3. Start with
Plug in 7
Simplify

So when x=7, y=21. (7,21)
Solutions: (0,0) (-1,-3) (7,21)