This system is inconsistent. There is no solution.
2x - 3y = 5
-6x + 9y = 12
Multiply the top equation by 3:
6x - 9y = 15
add the two equations together:
6x - 6x - 9y + 9y = 5 + 12
0 = 17
Which is a contradiction. Therefore the lines never intersect, and the solution is the empty set.
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by elimination,substitution or through the matrix method.
4
Yes, you can. Any iterative method/algorithm that is used to solve a continuous mathematics problem can also be called a numerical method/algorithm.
You drink lots of beer and get really drunk. At that point, you won't need to solve it, dick.
You have to solve it or if the answer is provided to you look at the y axis which is the one on the right of the graph. If the numbers form a pattern then its linear if there not... Well you can figure that out. It works for me most of the time and on a test one of five was wrong on this method.