3 years ago

Helpppp 3x + 10 3x + 2 x = [?]

Mathematics

1 answer:

zysi [14]3 years ago

7 0

Answer:

x=0

Step-by-step explanation:

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I am thinking of a number. if you divide my number by 3 and add -3 you get 4 what is my number

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Your number is 21.
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Question 11 of 25

Olegator [25]

$\\ \sf\longmapsto x+4=\sqrt{8-x}$

$\\ \sf\longmapsto (x+4)^2=8-x$

$\\ \sf\longmapsto x^2+16+8x=8-x$

$\\ \sf\longmapsto x^2+8x-x+16-8=0$

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$\\ \sf\longmapsto x^2-8x+x+8$

$\\ \sf\longmapsto (x-8)(x-1)=0$

$\\ \sf\longmapsto x=8,-1$

Option C

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3 years ago

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Mashutka [201]

Answer:

C. $\frac{21}{25}$

Step-by-step explanation:

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