3 years ago

Simplify. 5(x - y) - (x - y) a. x - y b. x y c. 4x - 4y d. 4x 4y

1 answer:

5 0

C is the answer hope this helps.

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Blizzard [7]

T is given that 2(3x+x)=6+2x. This is an example of the distributive property.

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3 years ago

andrezito [222]

I'll denote the identity function by $\mathrm{Id}$ . Then for any functions $f$ with inverse $f^{-1}$ ,

$\begin{cases}f\circ\mathrm{Id}=f\\\mathrm{Id}\circ f=f\\f\circ f^{-1}=\mathrm{Id}\end{cases}$

One important fact is that composition is associative, meaning for functions $f,g,h$ , we have

$(f\circ g)\circ h=f\circ(g\circ h)$

So given

$h=f\circ g$

we can compose the functions on either side with $g^{-1}$ :

$h\circ g^{-1}=(f\circ g)\circ g^{-1}=f\circ(g\circ g^{-1})$

then apply the rules listed above:

$h\circ g^{-1}=f\circ\mathrm{Id}=f$

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3 years ago

Gennadij [26K]

28! Multiply the 4 rows by the 6 computers per row to get 24 computers, then add the 4 computers in the fifth row to get 28 computers.

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3 years ago

Cerrena [4.2K]

143, love :) Hope this helps

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2 years ago

Kay [80]

Answer:

x=-4

Step-by-step explanation:

combine like tens to get 8x the divide 8 by -32 to get -4

8 0

3 years ago