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2 years ago

Solve for m d=n+7m Thank you

Mathematics

2 answers:

Sphinxa [80]2 years ago

5 0

Answer: $\displaystyle m = \frac{d-n}{7}$

This is the same as writing m = (d-n)/7

The parenthesis are essential for the second format because it tells us to divide all of (d-n) over 7, and not just n over 7.

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Explanation:

Here is one way to solve for m. I'll go over each step in the next section below.

$d = n+7m\\\\n+7m = d\\\\7m = d-n\\\\m = \frac{d-n}{7}$

The idea is to get the variable m by itself.

Think of n+7m as 7m+n since we can add in any order. Then undo the "plus n" portion by subtracting n from both sides (step 3).

In the 4th step, I divided both sides by 7 to undo the multiplication that is going on with 7m aka 7*m

In general we follow PEMDAS backwards to undo each operation done to the variable we're solving for. Let me know if you have any questions about what I mean.

Brut [27]2 years ago

3 0

Answer:

m=d/7−n/7

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The tangent function $y = \tan(x)$ has a real value for real inputs $x$ as long as the input $x \ne \displaystyle k\, \pi + \frac{\pi}{2}$ for all integer $k$ .

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On the other hand, in the function $f(x) = 3\, \tan(23\, x)$ , the input to the tangent function is replaced with $(23\, x)$ .

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