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alexandr1967 [171]
4 years ago
8

Simplify the expression. 8x + 7 – 3x

Mathematics
2 answers:
marshall27 [118]4 years ago
8 0
8x + 7 -3x=
15x - 3x=
12x

DIA [1.3K]4 years ago
6 0
5x+7
Hope this helps :)

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I am Lyosha [343]

Answer:

<h2>f(19) =  -  \frac{27}{7}  \\</h2>

Step-by-step explanation:

f(x) =  \frac{3}{x + 2}  -  \sqrt{x - 3}  \\

To find f(19) , substitute the value of x that's 19 into f(x). That is for every x in f (x) replace it with 19

We have

f(19) =  \frac{3}{19 + 2}  -  \sqrt{19  - 3}  \\  =  \frac{3}{21}  -  \sqrt{16}  \\  =   \frac{1}{7}  - 4 =  \frac{1 - 28}{7}

We have the final answer as

f(19) =  -  \frac{27}{7}  \\

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