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Tomtit [17]
3 years ago
13

Simplify each expression 1+10a-5a x-9-3x

Mathematics
2 answers:
Burka [1]3 years ago
7 0
1.) 1+10a-5a
Subtract 5a from 10a
Final Answer: 1+5a

3.) x-9-3x
Subtract 3x from x
Final Answer: -9-2x

5.) 1-4n+2n-1
Subtract 1 from 1
-4n+2n
Add
Final Answer: -2n

7.) 10k-3k
Subtract
Final Answer: 7k

9.) 5r+4-4
Subtract
Final Answer: 5r
Korvikt [17]3 years ago
3 0
1) 1+10a - 5a
     
1+ 5a

3) x-9-3x
    -9-2x

5) 1-4n+2n-1
      -2n

7) 10k-3k = 7k

9) 5r+4-4= 5r
       
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Step-by-step explanation:

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\dfrac{5}{x^2 - 4} + \dfrac{2}{x} = \dfrac{2}{x - 2}


\dfrac{5}{(x + 2)(x - 2)} + \dfrac{2}{x} = \dfrac{2}{x - 2}


\dfrac{5}{(x + 2)(x - 2)} \times x(x + 2)(x - 2) + \dfrac{2}{x} \times x(x + 2)(x - 2) = \dfrac{2}{x - 2} \times x(x + 2)(x - 2)


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Now we look at the common denominator.

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PolarNik [594]

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