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The sum of three numbers is 28. The second number is three times the first and the third is 7 less than the second. What are the numbers

User Firas
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2 Answers

7 votes

First term: 5
Second: 15
Last : 8
User Vladinkoc
by
7.5k points
5 votes

Equation:

x+3x+3x-7=28

Solving:

3x+3x+x=7x

7x-7=28

7x=28+7

7x=35

x=5

Plug 5 into the equations and you’ll get:

First term = 5

Second term = 15

Third term = 8

User David Woo
by
8.8k points

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