SOLUTION: for y=3|7-2x| + 5, which set describes x when y<8?
A. {x|3<x<4}
B. {x|3<x<10}
C. {x|x<3 or x>4}
D. {x|x<3 or x> 10}
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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
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