Easy Algerbra No.1

Algebra Level 2

Given that 2 X = Y , Y + Z = 16 2X{}=Y, Y+Z=16 and 2 Z = 12 2Z = 12 , what is the value of Y 2 Y^{2} ?

Bonus: What is the value of X X ?


The answer is 100.

Yuhan Zhai by yuhan zhai , 28, United Kingdom

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2 solutions

B D
Sep 10, 2018

The first thing you can calculate is Z because 2 * Z = 12 Z = 6, Y + Z(6) = 16 Y = 10, 2 * X = Y(10) X = 5. \text{The first thing you can calculate is Z because 2 * Z = 12 Z = 6, Y + Z(6) = 16 Y = 10, 2 * X = Y(10) X = 5. } The trick is squaring Y. I first thought to square Y by itself and got a large number which was incorrect and then I found the solution \text{The trick is squaring Y. I first thought to square Y by itself and got a large number which was incorrect and then I found the solution} Y 2 = 1 0 2 = 100 Y^{2} = 10^{2} = 100 .

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Yuhan Zhai
Sep 10, 2018

The solution is 2Z = 12 so Z = 6 Z+Y=16. We know Z=6 So 16-6 = 10. So Y=10. 10 Squared is 100!

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When is Easy Algerbra No.2?

B D - 2 years, 9 months ago

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Probably 2-15 Days from now

yuhan zhai - 2 years, 9 months ago

No.2 is out!

yuhan zhai - 2 years, 8 months ago

Do you want a challenge? Click here .

B D - 2 years, 8 months ago

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