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viva [34]
3 years ago
7

NEED HELP ASAP

Mathematics
1 answer:
Roman55 [17]3 years ago
3 0

Answer:

d-0.2d

Step-by-step explanation:

took the test bum

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borishaifa [10]

Equation to find number's value: \frac{1}{5}n + 3n = 2n + 42

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Explanation:

Let n be the unknown number for this problem.

One fifth of a number is the same as \frac{1}{5}n.

Three times the number is the same as 3n.

Twice the number plus 42 is the same as 2n + 42.

So, using the information we've gathered so far, we can create the equation that will provide us with n's value.

Equation: \frac{1}{5}n + 3n = 2n + 42

We can use this equation to find n's value.

You can subtract 2n from both sides to get the equation \frac{1}{5}n + n = 42, which is the same thing as the equation we were using.

Now add n and \frac{1}{5}n together to get 1\frac{1}{5}n.

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Now divide both sides by 1\frac{1}{5} to get n's value.

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