p + 9 < 7 p < 7 − 9 p < − 2 A n s w er : x ∈ ( − ∞ , − 2 )
1)You add 9 to both side; so you subtract 9 from nine which leaves you 0
2)you subtract 9 from the other side, because you have to do the same things to both sides. so you get 7-9. Which equals -2.
you're equation will look like : p<-2
To solve the inequality p + 9 < 7 , we isolate p to find p < − 2 . To graph it, we draw a number line, place an open circle at -2, and shade to the left to show all values less than -2. This illustrates the solution effectively.
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