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olasank [31]
3 years ago
6

3(x+9)-4x=11x-13x+23

Mathematics
1 answer:
adoni [48]3 years ago
7 0

Answer:

\huge\boxed{x=-4}

Step-by-step explanation:

3(x+9)-4x=11x-13x+23\\\\(3)(x)+(3)(9)-4x=(11x-13x)+23\\\\3x+27-4x=-2x+23\\\\(3x-4x)+27=-2x+23\\\\-x+27=-2x+23\qquad|\text{subtrsact 27 from both sides}\\\\-x=-2x-4\qquad|\text{add}\ 2x\ \text{to both sides}\\\\x=-4

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Luda [366]

Answer:

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Given as :

The total loan amount = $21,500

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The rate of interest are 11 %  and 10 %

Let The loan amount at 11 % rate = $P

and The loan amount at 10 % rate = $21,500 - $P

Let The loan took for 1 year

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Simple Interest = \dfrac{\textrm Principal\times \textrm Rate\times \textrm Time}{100}

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Hence The loaned amount at 11 % is $ 19,000

And     The loaned amount at 10 % is $ 2,500    Answer

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