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?​

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

What is the inequality?