The Purplemath Forums

Provide an example that uses the substitution method to solve two linear equations.

I need help on this problem, the substitution method, having a gard time understanding it please help!
x=8-4y
3x+5y=3

Please help having a difficult time solving this problem! The perimeter of a rectangle is 58 inches. The length exceeds the width by 19 inches. Find the length and width.

Thanks

How else can you describe the two lines in this inconsistent system? Please help!!

The consistent system is a system that has at least one solution. The inconsistent system is a system that has no solution. I thought the inconsistent is it would be the same slope as the intercept would be one possible equation. But that is not correct. Please let me know if that is correct, trying...

Thanks, I will check that site

Please help having a hard time understainding this.

Describe what the graph of interval [-4, 10] looks like.

Is it a solid dot at -4, a solid dot at 10 and a heavy line that connects to the two. The dots are solid as there is a square bracket at the ends of the interval.

Thanks so much