3 years ago

PLEASE HELP ME OUT IM FAILING. Thx

Mathematics

1 answer:

BARSIC [14]3 years ago

8 0

Answer: x∈(5,∞)

Step-by-step explanation:

x-7>-2=(x-7)+7>-2+7=x∈(5,∞)

To solve we need to group all the variables on one side, and all the constants on the other side.

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M= -5-5/-5-0

M= -10/-5

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Now get one of the points

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Step-by-step explanation:

The Number Line

Let's call

$\displaystyle A=-4\frac{1}{2}$

$\displaystyle B=+3\frac{1}{4}$

Both numbers are given as mixed fractions. Let's convert them to improper fractions:

$\displaystyle A=-4\frac{1}{2}=-(4+\frac{1}{2})=-\frac{8+1}{2}=-\frac{9}{2}$

$\displaystyle B=3\frac{1}{4}=3+\frac{1}{4}=\frac{12+1}{4}=\frac{13}{4}$

The decimal values are A = -9/2=-4.5, B=13/4 = 3.25

Now represent the points in the number line. See the image below

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$\displaystyle A+B=-\frac{9}{2}+\frac{13}{4}$

$\displaystyle A+B=-\frac{18}{4}+\frac{13}{4}=\frac{-18+13}{4}$

$\boxed{\displaystyle A+B=-\frac{5}{4}}$

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