Which is the correct solution of the system of linear equations? 2x – 4y = 6 6x = 12y + 18 A (0, 2 −3 ) B (-1, 5) C There are an infinite number of solutions D There is no solution
I believe this is D) No solution, but just to clarify, what does answer A say exactly?
Are you learning linear algebra?
it is (0,-3/2) i believe) and this is a review
Well you set up with all the x and y on the left hand side. Set it up as a matrix and then split it up until a 2x2 matrix and a 2x1 vector with the variable x and y. Row reduce echelon form and then solve for x and y. If there is a free variable then there is an infinite number of solution and if there is a conflict of values then there is no solution.
I am sticking with D because A only works for one of them
if given answer, dbl chk them by using them back in the equations to see what fits ....
if we multiply the top by 3, we get the same thing as the bottom; they are the same equations ...
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