x=1/0.3
Объяснение:
0.4x-2(0.6x+0.7)=0.5(x-3)-0.9
0.4x-1.2x-1.4=0.5x-1.5-0.9
0.8x-1.4=0.5x-2.4
0.3x=1
x=1/0.3
Объяснение:
0.4x-2(0.6x+0.7)=0.5(x-3)-0.9
0.4x-1.2x-1.4=0.5x-1.5-0.9
0.8x-1.4=0.5x-2.4
0.3x=1
x=1/0.3