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2 years ago

Solve for n: 2n + 3 + 3n = n + 11

Mathematics

2 answers:

Doss [256]2 years ago

8 0

Very easy

2n + 3 + 3n = n + 11
= 5n +3 = n + 11
= 4n = 11 - 3
= n = 8/4
= n = 4

thanks

Arte-miy333 [17]2 years ago

4 0

N is equal to 2 in the equasion

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2 years ago

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The ages of two brothers are in the ratio two to three, but in eight years, the ratio of their ages will be three to four. What

Darina [25.2K]

X = older brother
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Equation 1: x/y = 2/3 ⇒ x = 2y/3
Equation 2: x + 8/y + 8 = 3/4

$( \frac{2y}{3} + 8) / y +8 = \frac{3}{4}$
$(2y + 24)/3 = y + 8 = \frac{3}{4}$
$2y + 24 = 3 (y + 8) = \frac{3}{4}$
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The age of the older brother is 24.

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3 years ago

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