maths uncertainty. (1 Viewer)

Pinkled

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The solution of this equation is?
Thankyou in advanced.
 

Pinkled

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how come when i sub in 41/15, lhs doesnt equal to 2/5?
 

powlmao

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TImes by 3

9x - (6x - 7) = 6/5
9x - 6x + 7 = 6/5
3x = -29/5
x = -29/15


Miss read a sign, silly me. I can't do that in the real HSC


Just a note, i am writing in inproper fractions just to make it easier. Its easier to read -29/15 than -1 14/15 on a computer
 
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Drongoski

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correct answer(powlmao's) = -29/15.

Neater way;

x (3x5) both sides gives:

 
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