X=36. You just make the equation: X+9=45. Then you subtract 9 from 45 like this: -9 -9. That gives you 36
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Explanation:
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First, subtract by 4 from both sides.

Second, simplify.

Third, divide by -1 from both sides.

Fourth, simplify.

Next, add by 3 from both sides.

Then simplify.

Therefore, divide by 2 from both sides.

Finally, simplify.

<u><em>Answer⇒⇒⇒⇒x=2</em></u>
Hope this helps!
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-Charlie
Answer:
Step-by-step explanation:
When,x= -1
Now,
f(-1)=-(-1)^2+6
=1+6
=7
Hope it helped you.