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slavikrds [6]
3 years ago
14

Construct an equation for the expression: 3 less than 2 times a number is 7. Show the solution to the equation and prove your so

lution to be true through your work.
Mathematics
1 answer:
ElenaW [278]3 years ago
4 0

Answer:

5 x 2 -3 = 7

Step-by-step explanation:

i mean.... thats all

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8090 [49]

Hello, please consider the following.

We will multiply the numerator and denominator by

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to get rid of the root in the denominator.

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We need to take any x real number different from 8/3 then and simplify the expression.

Let's do it!

\begin{aligned}\dfrac{4}{4-\sqrt{6x}}&=\dfrac{4(4+\sqrt{6x})}{(4+\sqrt{6x})(4-\sqrt{6x})}\\\\&=\dfrac{4(4+\sqrt{6x})}{(4^2-\sqrt{6x}^2)}\\\\&=\dfrac{4(4+\sqrt{6x})}{(16-6x)}\\\\&=\dfrac{2(4+\sqrt{6x})}{(8-3x)}\\\\&\large \boxed{=\dfrac{8+2\sqrt{6x}}{8-3x}}\end{aligned}

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