Determinati in fiecare caz numarul natural x :
187-x=4•(856-777•3)
87+2•(93•7-42•11)=x+300
x+15•64=205+2•(144-23•5)
49+x+156=6•(139-7•11)
Cat mai repede dau puncte maximee !!! Sa fie corecte nu doar spuneti asa ...

1

Răspunsuri

2014-11-11T22:50:23+02:00
187*x= - 5852
x= -5852:187
x= -31,29

87+2*189=x+300
465=x+300
x=465-300
x=165

x+960=205+58
x+960=263
x=263-960
x= - -697

x+205=372
x=372-205
x=167
2 4 2