1) To solve this first problem, you are going to need to rearrange the equation into the slope-intercept form, y=mx+b. This will give you the two equations y=-2x+4 and y=-x+1 respectively. Now that they are in the correct form, you can graph them either with a calculator or by hand. If you are doing it by hand, begin by graphing the y-intercept and then use the negative slope to extrapolate and plot additional points on the line. To find your solution, you will simply look to see where the two cross. The answer to the system of equations will be the (x,y) coordinate value that the two lines have in common. For this particular question, the solution will be (3, -2).
2) You will follow the same process explained above to solve this problem. The two new equations will be y=(-2/3)x+(8/3) and y=(3/5)-5 respectively. When you graph these two equations, you will estimate where they cross to the nearest x and y values. The solution is closest to (6,-1).
