Question

Помогите найти корень уравнения .

Answer 1

1)0.9x-0.6(x-3)=2(0.2x-1.3)
 0.9x-0.6x+1.8=0.4x-2.6
 0.9x-0.6x-0.4x=-2.6-1.8
 -0.1x=-4.4
 x=44
2)-0.4(3x-1)+8(0.8x-0.3)=5-(3.8x+4)
-1.2x+0.4+6.4x-2.4=5-3.8x-4
1.2x+6.4x+3.8x=5-4-0.4+2.4
9x=3
x=3/9
x=1/3