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a_sh-v [17]
3 years ago
5

Which equations are related equations to x + 8 = 22? Select each correct answer. x = 22 + 8 x + 22 = 8 8=22−x x=22−8

Mathematics
2 answers:
Sindrei [870]3 years ago
8 0

Answer:

x = 22-8 option(D)

Step-by-step explanation:

The given equation is x+8=22

x+8=22

We can solve the above equation by hit and trail or by using transformation

put different values of x, we get x= 14

By transformation method,

 +8 will go to right hand side and converted into -8

x=22-8

x=14

Hence, option (D), x=22-8 is correct.

vivado [14]3 years ago
7 0
I'm not entirely sure but I believe it would be 8=22-x because x=16 so 8 does equal 22-16
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3 years ago
What is the value of E(-1) n (3n+2)?
RoseWind [281]
<h3>Answer:  C) 6</h3>

====================================================

Explanation:

The weird looking E symbol is the greek uppercase letter sigma. It refers to a sum.

It tells us to add up terms in the form (-1)^n*(3n+2) where n is an integer ranging from n = 1 to n = 4.

------------------

If n = 1, then we have

(-1)^n*(3n+2) = (-1)^1*(3*1+2) = -5

Let A = -5 as we'll use it later.

------------------

If n = 2, then

(-1)^n*(3n+2) = (-1)^2*(3*2+2) = 8

Let B = 8 since we'll use this later as well

------------------

If n = 3, then

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Let C = -11

-------------------

If n = 4, then

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--------------------

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\displaystyle \sum_{n=1}^{4}(-1)^n(3n+2) = 6

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3 years ago
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