3 years ago

What the freak is this 4^(x)-2^(x+1)=48

Mathematics

2 answers:

Dmitry_Shevchenko [17]3 years ago

7 0

Answer:

4^x - 2^(x+1) = 48

x=3

Step-by-step explanation:

kolbaska11 [484]3 years ago

3 0

Answer:

4^x+2^2x=47

Step-by-step explanation:

4^x+2^2x+1=48

We move all terms to the left:

4^x+2^2x+1-(48)=0

We add all the numbers together, and all the variables

4^x+2^2x-47=0

We move all terms containing x to the left, all other terms to the right

4^x+2^2x=47

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Answer:

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Step-by-step explanation:

<h3>Step 1: Make sense of the given</h3>

"The ratio of y to x is 3"

This means that, $y\div x=3$

"The sum of y and x is 80"

This means, $x+y=80$

<h3>Step 2: Make use of the facts</h3>

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We can plug this into the other equation by substitution:

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This simplifies to:

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Which we can solve out and get:
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So, we go back to the equation we first derived: " $y = (3*x)$ ".

And now we substitute the value of x, into this.

$y = (3 * (20))$

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Step-by-step explanation:

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