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Maslowich
3 years ago
13

Step 1 -3(3x+5)-6<6

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
6 0
Error is between steps 4 and 5. It should say:

Step 4: -9x < 27
Now divide by -9
Step 5: x > -3
Note that the inequality changes direction.
When you mean multiply or divide an inequality by a negative number, the inequality changes direction.

For example:
4 < 5
Multiply by -1:
-4 > -5

Another example:
-5 < 0
5 > 0
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2 years ago
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