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the sum of three numbers is 85. The second is 7 more than the first. The third is 2 more than four times the second. Find the numbers

Sagot :

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The first number - x
The second number is 7 more than the first - x+7
The third number is 2 more than 4 times the second - 4(x+7)+2
The sum of the numbers is 85.

[tex]x+x+7+4(x+7)+2=85 \\ x+x+7+4x+28+2=85 \\ 6x+37=85 \ \ \ |-37 \\ 6x=48 \ \ \ |\div 6 \\ x=8 \\ \\ x+7=8+7=15 \\ \\ 4(x+7)+2=4 \times 15+2=60+2=62[/tex]

The numbers are 8, 15 and 62.
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