Asked by delicious

use substitution method
3x-y=0
2x-y=-1
Answered by Reiny
from the first : y = 3x
Into the second :
2x - 3x = -1
-x = -1
x = 1
then y = 3(1) = 3
Answered by rachel
ghngh
Answered by rachel
2x+y=5 in slope form
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