Question

Să se determine valoarea lui X din: 7•2+3•x•[3+2•(5+1)]=14

Answer 1

Răspuns:

7•2+3•x•[3+2•(5+1)]=14

14+3•x•(3+2x6)=14

14+3•x•(3+12)=14

14+3•x•15=14

3•x•15=14-14

3•x•15=0

3•x=0:15

3•x=0

x=0:3

x=0