Thread: Linear equation

Nr 2 is My problem and the other is My failed progress...

When you add -10 times the first row to the second you should get (-60)+(-9) = -60. You've written -51?

U mean -69:P misscalculated XD
After i zero the second and third then im lost..:/ i cant zero anymore

Den go to the second row, and divide by -9 to get new leading one. After that. Add a multiple of second row to third row to get zero below.

Hmm that dont work??