Answer:
−8x−x21+20
Step-by-step explanation:
1 Collect like terms.
(x-9x)-\frac{1}{{x}^{2}}+20 (x−9x)−x21+20
2 Simplify.
-8x-\frac{1}{{x}^{2}}+20 −8x−x21+20
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Answer:
45
Step-by-step explanation:
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Answer:
Infinite number of solutions.
Step-by-step explanation:
y = -7x - 2
y + 3 = -7x + 1
Subtract 3 from both sides:
y = -7x - 2
- this is the same as the first equation.
We can put any number of valid combinations of x and y into this equation.
So there are infinite solutions.
Answer:
Step-by-step explanation:
35. 4
36. 4
37. 16
38. 4
39. 2
40. 2
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