Question

How can I solve the following systems using Gaussian elimination method, w+2x-y=4, x-y=3 , w+2x-2y=7 2u+4v+w+7x=7?​

Answer 1

Move the variable to the left-hand side and change its sign


Collect like terms


Divide both sides of the equation by


Write the solution in parametric form





The next to one is


Move the variables to the right-hand side and change their signs


Divide both sides of the equation by

Write the solution in parametric form


U = 7/2 -2v - 1/2w-7/2x, ver,
Wer , xer