4 years ago

One number is eight more than three times another number. If the sum of the numbers is 28, find the numbers.

1 answer:

5 0

Hi,

You can write your problem as:

x = 8 + 3y
x + y = 28

So

(8 + 3y) + y = 28
4y = 28 - 8
4y = 20
y = 20/4 = 5

x + y = 28
x + 5 = 28
x = 28 - 5 = 23

The numbers are 23 and 5.

Hope this helps! If my answer was not clear enough or you’d like further explanation please let me know. Also, English is not my first language, so I’m sorry for any mistakes.

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Find the value of the expression 4a to the fourth power - 2b squared +40 when a =2 and b=7

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