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26 votes
26 votes
Algebra 1 pretest I need help with the whole thing so if you can keep answering questions that would be great

Algebra 1 pretest I need help with the whole thing so if you can keep answering questions-example-1
User Sumit Jha
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2.5k points

1 Answer

13 votes
13 votes

Given:

The inequality is,


-6(x+3)+10<-2

Step-by-step explanation:

Simplify the inequality for x to determine the mistake.


\begin{gathered} -6(x+3)+10<-2 \\ -6x-18+10<-2 \\ -6x-8<-2 \\ -6x\cdot(-1)/(6)<6\cdot(-1)/(6) \\ x>-1 \end{gathered}

When inequality is multiplied with negative number, then inequality sign changes. But Irene did not change the inequality sign after multiplication with negative number. So Irene made mistake from step 4 to step 5.

Answer: From step 4 to step 5

User Robdasilva
by
2.7k points
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