{7x+y/3 - 5x-y/2 = x+y/6 { 9x-2y/8 + 7x+4y/6 = - вопрос №73526928746347546222 от Kurban9595 11.01.2021 22:37

Question

Математика: {7x+y/3 - 5x-y/2 = x+y/6 { 9x-2y/8 + 7x+4y/6 = x+y/3 + 4.

Kurban9595 · Answer

{ 7x+y/3 - 5x-y/2 = x+y/6|*6{ 9x-2y/8 + 7x+4y/6 = x+y/3 + 4.|*24{42x+2y-30x-3y=6x+y{216x-6y+168x+16y=24x+8y{42x+2y-30x-3y-6x-y=0{216x-6y+168x+16y-24x-8y=0+{6x-2y=0+{360x+2y=0366x=0|:366x=00*6-2y=0-2y=0|:(-2)y=0...