please explain in detail and show the how you do the calculation for Y=2x+1. I do not understand linear equation fully. If I see step by step illustrations this will help me out.
thanks raynald

As this is completely out of context we have no idea where to start.

Please clarify your question.

This question was not clear. What I am asking is concerning Algebra solving system by graphing. If I have a problem y=-2x=3. How do you find out the answers and how do you graph it on a recangle coordinate.

It's been a while since I took algebra, but to solve by graphing, I believe you need two equations...

Nope.

Pick convient numbers for x and find the cotespondimg y. Graph the (X,Y) pairs and connect them. Read slope and intercept off graph

or

Graph using slope and intercept from eqn.

Again, ambiguous.