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Sholpan [36]
3 years ago
6

2 Points

Mathematics
2 answers:
SOVA2 [1]3 years ago
6 0

A

distributive property

-4x - y + 2x - 6y

Combine like terms

-2x - 7y

Kobotan [32]3 years ago
5 0

Simplest form of the expression is -2x - 7y

Step-by-step explanation:

  • Step 1: Simplify the expression following the BODMAS principle.

⇒ -(4x+y) + 2(x – 3y) = -4x - y + 2x - 6y

                                 = -2x - 7y

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Determine if the sequence is arithmetic. If it is, find the common difference. Is the sequence a function ?
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\r=\dfrac{a_{n+1}}{a_n}\\\\r=\dfrac{a_2}{a_1}=\dfrac{a_3}{a_2}=\dfrac{a_4}{a_3}=...\\\\8.)\\a_1=4;\ a_2=20;\ a_3=100;\ a_4=500\\\\r=\dfrac{20}{4}=\dfrac{100}{20}=\dfrac{500}{100}=5\\\\10.)\\a_1-30;\ a_2=-45;\ a_3=-50;\ a_4=-65\\\\\dfrac{a_2}{a_1}=\dfrac{-45}{-30}=\dfrac{3}{2}\\\\\dfrac{a_3}{a_2}=\dfrac{-50}{-45}=\dfrac{10}{9}\\\\\dfrac{a_2}{a_1}\neq\dfrac{a_3}{a_2}\\\\\text{It's not a geometric sequence}
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8 0
2 years ago
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First we solve what we can solve.
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Then we move the -3 and it becomes +3 on the other side
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And we solve what we can to get our answer.
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