Question

0,5(×+4)-2,5=0,4(×+3)
​

Answer 1

Ответ:     17.

Пошаговое объяснение:

0,5(x+4)-2,5=0,4(x+3);

0.5x+2-2.5 = 0.4x+1.2;

0.5x-0.4x = 1.2+2.5-2;

0.1x = 1.7;

x=17.

Answer 2

0.5(x+4) - 2.5 = 0.4(x+3)

0.5x + 2 - 2.5 = 0.4x + 1.2

0.5x - 0.5 = 0.4x + 1.2

0.5x - 0.4x = 1.2 + 0.5

0.1x = 1.7

x = 17