решите уравнение:

1) 0.3(x-2)-0.2(x+4)=0.6

2) 0.8x+1.2(x+1.8)=35.96

0,3х-0,6=0,6+0,2х+0,8 0,3х-0,2х=1,4+0,6 Дальше напишешь0.8x+1.2x+2.16=35.962x=35.96-2.162x=33.8x=16.9

1. 0.3*(x-2)=0.3*x-0.6  0.3*(x-2)=0.3*x-0.3*2  1.1. 0.3*2=0.6      X0.3       _ _2_ _       0.6 2. 0.2*(x+4)=0.2*x+0.8  0.2*(x+4)=0.2*x+0.2*4  2.1. 0.2*4=0.8      X0.2       _ _4_ _       0.8 3. 0.3*x-0.6-(0.2*x+0.8)=0.3*x-0.6-0.2*x-0.84. 0.3*x-0.2*x=0.1*x5. -0.6-0.8=-1.4  +0.6   _0_._8_   1.46. -1.4-0.6=-2  +1.4   _0_._6_   1. 0.3*x-0.6-0.2*(x+4)-0.6=0  1.1. 0.3*(x-2)=0.3*x-0.6      0.3*(x-2)=0.3*x-0.3*2    1.1.1. 0.3*2=0.6          X0.3           _ _2_ _           0.6 2. 0.3*x-0.6-(0.2*x+0.8)-0.6=0  2.1. 0.2*(x+4)=0.2*x+0.8      0.2*(x+4)=0.2*x+0.2*4    2.1.1. 0.2*4=0.8          X0.2           _ _4_ _           0.8 3. 0.3*x-0.6-0.2*x-0.8-0.6=0  3.1. 0.3*x-0.6-(0.2*x+0.8)=0.3*x-0.6-0.2*x-0.84. 0.1*x-0.6-0.8-0.6=0  4.1. 0.3*x-0.2*x=0.1*x5. 0.1*x-1.4-0.6=0  5.1. -0.6-0.8=-1.4      +0.6       _0_._8_       1.4 6. -1.4-0.6=-2   Ответ: 0.1*x-2=0