the answer is -5x + 9. subtract liketerms.
Explaination:
2x - 7x = -5x
-(-5) is positive 5
5 - (-4) = 9
-5x + 9
Its 3. Because 5*3 is 15 and 9*3 is 27
Answer:
n
8
Step-by-step explanation:
You add 4 to both sides to make n the only thing on one side. Then to make the answer look better you move n to the left side and flip the symbol because n changed sides.

Answer:
14. 1/13
15. 14/15
16. 1/13
17. 15/30=1/2
18. 12/13
19. 12/15
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