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Mathematics

Answered

Four times the sum of a number r and 4 is equal to 20 less than 10 times the number r. What is the value of r ?

Answer :

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Answer:

r = 6

Step-by-step explanation:

According to the question,

4(r + 4) = 10r - 20

4r + 16 = 10r - 20

16 + 20 = 10r - 4r

6r = 36

r = 36 / 6

r = 6

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