3 years ago

I don't want the answer, but I want to know how you got that answer.

Mathematics

1 answer:

anastassius [24]3 years ago

8 0

Answer:

n = 5

Step-by-step explanation:

$4n+5n+15=5n+7n\\\\9n+15=12n\\\\9n+15-15=12n-15\\\\-3n=-15\\\\\frac{-3n=-15}{-3}\\\\ \boxed{n=5}$

Hope this helps.

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daser333 [38]

Answer:

x = 36

Here's how I got that:

- Group like terms -

x - 2 + 2x + 4 + 2x - 2 = 180

↓

5x - 2 + 4 - 2 = 180

↓

5x = 180

- Divide both sides by 5 -

5x/5 = 180/5

↓

x = 36

~ That's all folks ~

-Siascon

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Step-by-step explanation:

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Calculate 6+9i/-1+4i

lisabon 2012 [21]

Multiply the numerator and denominator by the conjugate of the denominator:

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Simplify:

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