Анонимно

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

Ответ

Анонимно

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

0.3x - 0.3*2 = 0.6 + 0.2x +0.2*4

0.3x - 0.6 = 0.6 + 0.2x + 0.8

0.3x -0.2x = 0.6 + 0.8 + 0.6

0.1x = 2.0

x = 2.0 : 0.1

x = 20