X and Y

Algebra Level 1

If x = 3 x=3 and y = 2 x y=2x find the value of 3 y 3y .

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Oliver Bergsten by Oliver Bergsten , 20, Sweden

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4 solutions

Munem Shahriar
Jun 29, 2017

It was given that ,

x = 3 x = 3

y = 2 x y = 2x

Now,

3 ⋅ 2 x = 6 x 3 \cdot 2x = 6x

6 x = 6 × 3 = 18 6x = 6 \times 3 = 18

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3 y = 6 x = 6 × 3 = 18 3y=6x=6 \times 3=\boxed {18} .

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3 y = 6 x ⟹ y = 2 x 3y=6x\implies y=2x but it is given that y = 3 x y=3x

Abdur Rehman Zahid - 5 years, 2 months ago

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The question has been edited. Before it was y = 2 x y=2x only.

A Former Brilliant Member - 5 years, 2 months ago
B D
Oct 14, 2018

Y = 6 3Y = 18

Easy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.....

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Oliver Bergsten
Apr 10, 2016

Sorry everybody, idk what happend but somehow the 2x was changed to 3x, it should be fixed now

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