First we have to write the problem. |
2x-3y=1 x+y=3 |
| Next we have to change the equations into slope intercept form. (y=mx+b) |
y=(2/3)x-(1/3) y=-x+3 |
| Next graph the equation. |
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Plug in the point of intersection into the original problem |
(2,1) (2)+(1)=3 3=3 |