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prisoha [69]
3 years ago
15

If the first step in the solution of the equation -9 + x = 5x - 7 is "subtract x," then what would the next step be ?

Mathematics
1 answer:
lutik1710 [3]3 years ago
5 0

Answer:

-1/2=x

Step-by-step explanation:

-9 + x = 5x - 7

     -x      -x

-9=4x-7

+7         +7

-2=4x

-2/4 =4x/4

-1/2=x

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In △ RTV , X is the centroid and RU = 18. Find RX and XU. Enter your answers as numbers.
lapo4ka [179]

Answer:

RX = 12 and XU = 6

Step-by-step explanation:

Given :  In ΔTRV , TW ,RU and VS are the medians .

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To Find : RX and XU

Solution:

Since we know that the centroid divides each median in a ratio of 2:1.



Since X is the centroid so RX : XU = 2:1

So, let RX = 2x and XU = x

And we are given that RU = 18

⇒RX +XU=18

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⇒3x=18

⇒x=\frac{18}{3}

⇒x=6

Thus,  RX = 2x = 2*6 =12

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Hence length of RX = 12 and XU = 6

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