FIND THE ERROR Sierra solved the compound inequality - 3x + 7x-1<-5 or -3x + 7x – 1 > 11 as shown. What error did she make in solving the inequality?
Step
Property
Step
Property
-3x + 7x-1(-5
Original inequality
-3x + 7X - 1 > 11
Original inequality
4X - 1(-5
Combine like terms.
-4X - 1 > 11
Combine like terms.
4XC-4
-4X > 12
Addition Property
Division Property
Addition Property
Division Property
XC-1
XC-3