3) 4x+4y +42-20 6x - 2y+4zI=-26
x+2y+52-27
Ik the answer is (-5 , 6 , 4)
Ad for one of my unknown equations I got (7x+4y+4z=20) but I can’t get the other one please help

What is the difference between regular convex and concave polygons

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is