at 0:24, why did you multiply by -1?
CodeValkyRie 10 months ago
@CodeValkyRie When I multiply the blue (top equation) by negative 1 and add it to the yellow equation, the x's in those two equations go away. I do this to get rid of the x's and then I am down to just the y and the z.
algebrafun 10 months ago
at 0:24, why did you multiply by -1?
CodeValkyRie 10 months ago
@CodeValkyRie When I multiply the blue (top equation) by negative 1 and add it to the yellow equation, the x's in those two equations go away. I do this to get rid of the x's and then I am down to just the y and the z.
algebrafun 10 months ago