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iwantfood · 07-10-2005, 07:04 PM

20. substitution
4(7+y)=6-2y
28+4y+2y=6
6y=-22
y=-22/6=-11/3

x=7-(11/3)=(22/3)-(11/3)
x=10/3
Answer: D

I don't know how to do the second one..btw is this SAT I MATH?

07-10-2005, 07:04 PM	#5
iwantfood Member Join Date: Jun 2005 Posts: 503	20. substitution 4(7+y)=6-2y 28+4y+2y=6 6y=-22 y=-22/6=-11/3 x=7-(11/3)=(22/3)-(11/3) x=10/3 Answer: D I don't know how to do the second one..btw is this SAT I MATH?