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Lana71 [14]
3 years ago
9

Solve 0.6(10n + 25) = 10 + 5n ?

Mathematics
2 answers:
Pachacha [2.7K]3 years ago
5 0

Answer: x=-5

<u>Simplify both sides of the equation</u>

(0.6)(10n)+(0.6)(25)=10+5n(Distribute)\\6n+15=10+5n\\6n+15=5n+10

<u>Subtract 5n from both sides</u>

6n+15-5n=5n+10-5n\\n+15=10

<u>Subtract 15 from both sides</u>

n+15-15=10-15\\n=-5

Leto [7]3 years ago
4 0

Answer: n=-5

Move all terms containing n to the left, all other terms to the right

<u>Add -5n to each side of the equation.</u>

<u></u>15 + 6n + -5n = 10 + 5n + -5n<u></u>

<u></u>

<u>Combine like terms: 6n + -5n = 1n </u>

<u></u>15 + 1n = 10 + 5n + -5n<u></u>

<u></u>

<u>Combine like terms: 5n + -5n = 0 </u>

<u></u>15 + 1n = 10 + 0\\15 + 1n = 10<u></u>

<u></u>

<u>Add -15 to each side of the equation</u>

<u></u>15 + -15 + 1n = 10 + -15<u></u>

<u></u>

<u>Combine like terms: 15 + -15 = 0 </u>

<u></u>0 + 1n = 10 + -151n = 10 + -15<u></u>

<u></u>

<u>Combine like terms: 10 + -15 = -5 </u>

<u></u>1n = -5<u></u>

<u></u>

<u>Divide each side by 1</u>

<u></u>1n/1=-5/1\\n=-5<u></u>

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