Question

Find the solution to the system of equations by substitution {x+y=6 {2x-y= - 12

Answer 1

X+Y=6. Y=6-X 2X-(6-X)=-12 2X-6+X=-12. 3X=-6. X=-2. Y=6-(-2). Y=8

SOLUTION: { (x,y) | (-2,8) }