ygcdalinx02 ygcdalinx02

07-10-2016
Mathematics

contestada

find the error in the solution, and then solve correctly 9x+18+3x=1 9x+18=-2 9x=20 x=-20/9

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FractalX FractalX

07-10-2016

9x+18+3x=1
The second should be:
12x + 18=1, as you cannot combine -3x and 1 to get -2
To continue:
12x = -17
x = -17/12

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