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Zinaida [17]
3 years ago
7

HURRY

Mathematics
2 answers:
malfutka [58]3 years ago
4 0

Answer:

<em>x = 3.</em>

Step-by-step explanation:

1.  <u><em>Add 2 + 7, and you get 9.</em></u>

2.  <u><em>Now find what 3 multiplied by what equals 9.</em></u>

3. <em><u>3 x 3 = 9.</u></em>

4.  <em><u>Therefore, x = 3.</u></em>

5.  <em><u>3 x 3 - 2 = 7.</u></em>

zepelin [54]3 years ago
3 0
Add 2 to both sides of the equation, Simplify, Divide both sides of the equation by the same term, Simplify again. 3x-2=7. 3x-2+2=7+2. 3x=9. 3x/3=9/3. Answer:x=3
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3 years ago
A+2/a-5÷a+1/a2-8a+15
krok68 [10]
For A+\frac{2}{a}-\frac{5}{a}+\frac{1}{a^2}-8a+15

Combine the fractions \frac{2}{a}  -  \frac{5}{a} \ \textgreater \  \mathrm{Apply\:rule}\:\frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c} \ \textgreater \  \frac{2-5}{a}


\mathrm{Subtract\:the\:numbers:}\:2-5=-3 \ \textgreater \  \frac{-3}{a}

\mathrm{Apply\:the\:fraction\:rule}:\ \frac{-a}{b}=-\frac{a}{b} \ \textgreater \  -\frac{3}{a}

Therefore our final answer is A-\frac{3}{a}+\frac{1}{a^2}-8a+15

Hope this helps!
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3 years ago
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Answer:

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