SOLUTION: HELP! - Determine how many solutions exist - Use either elimination or substitution to find the solutions (if any) - Graph the two lines, labeling the x-intercepts, y-intercep

Question 615346: HELP!
- Determine how many solutions exist
- Use either elimination or substitution to find the solutions (if any)
- Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection

x + y = 3 and y = x + 3
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Put both equations into slope-intercept form. If the slopes are different, then you have a single solution.

Put both equations in to standard form. Add the two equations eliminating x, then solve the resulting single variable equation in y. Substitute back to get an equation in x and solve that.

Graph them using normal methods.

John

My calculator said it, I believe it, that settles it

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