Question

Find the solution of this system of equations

6x = 90 +3y
x - 3y = 50

Show work please

Answer 1

$6x = 90 +3y\\ x - 3y = 50\\\\ -6x+3y=-90\\ \underline{x-3y=50}\\ -5x=-40\\ x=8\\\\ 8-3y=50\\ 3y=-42\\ y=-14$

Answer 2

I did it using elimination method.