Solve the following system of equations for all three variables. x – 3y - 5z = -9
-x + 7y + 8z = 2
-x + 5y + 2z = -8
x= y =___ Z =___ ​

Me! 50 points! why does when we come home, our door is unlocked and there is grease on the door knob, me solve this , and i don't know what category this goes under

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots

State if the two triangles are congruent. if they are, state how you know?