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andrezito [222]
3 years ago
12

5x – 12 = 13 8(x + 3) = 64 using algebra

Mathematics
2 answers:
zepelin [54]3 years ago
7 0

stop using my information please !! i thought my family member asked for brainly but she told me nvm and you have my email address ? how ? but please report this guys !! it isn’t me i can get in a lot of trouble.

loris [4]3 years ago
3 0

Answer:

A) 5 and B) 5

Step-by-step explanation:

A) 5x-12=13

        +12    +12 (add 12 to the 13)

    5x=25  

(then divide 25 by 5 which is 5 so the answer is 5)

B) 8(x+3)=64  (first use distributive property)

   8x+24=64

        -24   -24    (then subtract 24 to 64 which is 40)

    8x=40

(then divide 40 by 8 which is 5 so that is it!)

I believe this is correct, I hope this helps :D

   

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The sum of the ages of Levi and Monique is 76 years. 8 years ago, Levi's age was 3 times Monique's age. How old is Levi now?
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Answer:

Levi is 53 yrs now

Step-by-step explanation:

sum = 76yrs

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Monique = x - 8

8yrs ago

sum= 76 - 8 - 8( the two 8s are from each of the two brothers).

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x = 15yrs

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