Question 253391: for y=3|7-2x| + 5, which set describes x when y<8?
A. {x|3
B. {x|3
C. {x|x<3 or x>4}
D. {x|x<3 or x> 10} Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! 3|7-2x| + 5 < 8
3|7-2x|<3
|7-2x|<1
.
7-2x<1
-2x<-6
x>3 reverse inequality sign
.
7-2x>-1 reverse inequality sign and 1 becomes negative.
-2x>-8
x<4 reverse inequality sign
.
A. 3