Question 136947: solve by substitution method. A.) y=-X+6 B.) y=-2x+7
Y=-x-3 -2x+y=-3
C.) y=x-5 D.) 2x+3y=-1
4x+y=15 3x-3y=-4
I solved C. I think so: X=4 Y=-1 the others I tried but can't get anywhere.
This is a homework test-not in book, instructor gave these on a sheet Answer by vleith(2983) (Show Source):
You can put this solution on YOUR website! A cannot be done. that says -3 = +6
B and
x = 2.5
C you have correct
D and
x = -1
You can solve for y :-D
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