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ahrayia [7]
3 years ago
10

3(r-6)+2=4(r+2)-21 . Find the value for r?

Mathematics
1 answer:
galben [10]3 years ago
8 0
3(r-6)+2=4(r+2)-21
3r-18+2=4r+8-21
3r-16=4r-13
-3=r

r=-3
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svlad2 [7]
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(1.5*4)+(0.5*x)=(0.5*9)+(1.5*1)+(2.5*1)

This simplifies to:

6+0.5x=8.5
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x= \frac{2.5}{0.5}
x=5

This method can sometimes be inefficient depending on how many values but is probably the simplest way to solve this problem.

hope this helps :)

(sorry the other way is kinda hard to explain possibly ask your teacher tomorrow)
6 0
3 years ago
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frosja888 [35]

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3 years ago
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Tamiku [17]

Answer:

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3 0
3 years ago
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