Find the value of x x

Algebra Level 1

Find the value of x x provided that 4 ( 4 x ) + 2 x = 72 4(4x)+2x=72 .

6 4 5 2

Lorenz Navales by lorenz navales , 21, Philippines

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2 solutions

Aditya Kumar
Mar 10, 2016

4 ( 4 x ) + 2 x = 72 4\left(4x\right)+2x=72 16 x + 2 x = 72 16x+2x=72 18 x = 72 18x=72 Now, on dividing both the sides by 18 18 , we get: x = 72 18 x=\frac{72}{18} Therefore, x = 4 \color{#3D99F6}{\boxed{\boxed{x=4}}}

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Nice solution. Thanks :)

Sandeep Bhardwaj - 5 years, 3 months ago

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Well, this was my second experiment. I wanted to see how many upvotes I receive in algebra level 1 problems. In the last one I got 21. People who post solutions to level 5 problems never receive that many upvotes :(

Aditya Kumar - 5 years, 3 months ago
Ashish Menon
May 23, 2016

4 ( 4 x ) + 2 x = 72 16 x + 2 x = 72 18 x = 72 x = 72 18 = 4 \begin{aligned} 4(4x) + 2x & = 72\\ 16x + 2x & = 72\\ 18x & = 72\\ x & = \dfrac{72}{18}\\ & = \color{#69047E}{\boxed{4}} \end{aligned}

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A small mistake at the second last line. It should be x=72/18, not 72/4.

Loo Soo Yong - 4 years, 10 months ago

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Thanks, i corrected thr typo.

Ashish Menon - 4 years, 10 months ago

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