Question

Please help you/ll get a medal and gain a fan

Answer 1

What is the solution of the system of equation?

Answer 2

equation (1) subtracts equation (3) , we have : -2z=6 => z=-3
plug z=-3 in equation (1) and (2) we have
equation (1)=3x-2y-3=7 or 3x-2y=10
equation (2)=5x+5y-12=3 or 5x-5y=15
solve the two equations by subtitution you will get , x= 4 and y=-1
so the solution is (4,-1,-3)

Answer 3

@nguyen8ki thnx