3y=6+2y Z=6-5z X+2=4-x решить уравнения
1) 3Y = 6 + 2Y 3Y - 2Y = - 6 Y = - 6 ///////////////////////////// 2) Z = 6 - 5Z Z + 5Z = 6 6Z = 6 Z = 1 ///////////////////////////////// 3) X + 2 = 4 - X X + X = 4 - 2 2X = 2 X = 1
1)6+2y=3y 2)6-5z=z 3)x+2=4-x 2y-3y=6 -5z-z=-6 x+x=4-2 -y=6 -6z=-6 2x=2 y=-6 z=1 x=1