x + 3y = 2
2x - 3y = 22
Add the two equations: 3x = 24
Divide both sides by 3 to give x= 8.
Substitue this value of x in the first equation to give 8 + 3y = 2
Subtract 8 from both sides: 3y = -6
Divide both sides by 3: y = -2
Solution: (X, y) = (8, -2)
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Put the equation in this form: y=mx+b. Then m will be the slope. 2x3y+6=0 2x3y=-6 3y=-6/2x y=-2/2x y=-1/x This equation does not describe a straight line, but rather, it describes a curve.
5x+3y
x-y = 6 -x-3y = 22 -4y = 28 y = -7 So by substituting: x = -1 and y = -7
x = 2.15 and y = 3.75
3y - 3 = 2y + 5 3y - 2y = 5 + 3 y = 8