SOLUTION: how do i solve the linear equation 3x+y=20 2x+2y=24

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Question 274733: how do i solve the linear equation 3x+y=20 2x+2y=24
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
3x+y=20
y=-3x+20 (red line).
2x+2y=24
2y=-2x+24
y=-2x/2+24/2
y=-x+12 (green line).
Line intercepts (4,8)
+graph%28+300%2C+200%2C+-6%2C+15%2C+-10%2C+20%2C+-3x+%2B20%2C+-x+%2B12%29+ (graph 300x200 pixels, x from -6 to 15, y from -10 to 20, of TWO functions -3x +20 and -x +12).