Question

Решите уравнение.!!! a)-5x=16 b)2x=1/ 5 с)1/3x=4 d)4x=-2 e)0,6x=3 f)-0,7x=5

Answer 1

A    -5х=16              D   4х=-2

       х=16:(-5)              х=-2 :4

       х= -3,2                  х= - 0,5

 

Б     2х=1/5             E  0,6х=3

       х=1/5:2                х= 3:0,6

       х=0,1                   х=5

 

С     1/3x=4             F  -0,7x=5

        х=1/3 :4              х=5:(-0,7)

        х=12                    х=7 1

                                         7