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01-03-2016
Mathematics

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Help with 9 and 10 please?

Help with 9 and 10 please class=

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SmarticalParticals SmarticalParticals

01-03-2016

9. Let x equal the number

Two less than a number is

x - 2

Is more than 15 is

> 15

Put them together for

x-2 > 15

Now solve

x-2 > 15
x > 17

10. Let x equal a number

Seven more than a number is

x+ 7

Is less than or equal to 27 is

<= 27

Put them together for

x + 7 <= 27

Now solve

x+ 7 <= 27
x <= 20

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