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On graph paper find several points with coordinate pairs. Three would be good.
If x=0 then y would be (-1).....(0,-1)
If x=1 then y would be (2)......(1,2)
If x=2 then y would be (5)......(2,5)
Plot these three points and then draw a line through these with arrows at the ends
By graphing the lines on the coordinated plane they will intersect at (2, -4) which is the solution of the equations
well, if 5-y=x, then y=x+5. basically that is only used for graphing.
if u have a regular calculator, you cannot put y =, if u have a graphing calculator, then you press the "y =" button
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
Each and every one of the infinitely many points on the line y + x = -2