Answer: x<7 or (-infinity,7)
Step-by-step explanation:
3x-9<12
3x<21
x<7
Answer:
Explanation:
You carry the 9 to the other side and do the inverse(opposite of take away
3x<12+9
3x/3x
To cancel out the the x you must devide them together and then devide 21รท3
21/3=7
X<7
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