9.2x-9<7
add 9 to both sides, 2x<16
divide both sides by 2, x<8
A.
10.n<5
-4n+11>-9 Subtract 11 from both sides
-4n>-20 then, divide both sides by -4
In these greather than less than equations, when you divide a negative by another negative, you must flip the sign
so that would be, n<5
D
Just add a 0 to the end of all of em♀️
Answer:
The answer is (-3,7/2)
Step-by-step explanation:

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Answer:
Solving quadratic equations can be difficult, but luckily there are several different methods that we can use depending on what type of quadratic that we are trying to solve. The four methods of solving a quadratic equation are factoring, using the square roots, completing the square and the quadratic formula.
Step-by-step explanation:
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