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Change 4x-5y=-20 and x+3y= -3 to y=mx+b form.
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5y=4x+20 y=(4/5)x+4 3y=-x-3 y=(-1/3)x-1
Why is it positive 4x+20? Wouldn't it be -4x-20?
2 negatives = positive
Ohhh okay. Thank you!
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