Question

Care dintre ecuatiile urmatoare au ca solutie un numar natural mai mare decat4 dar mai mic decat 20?
a) 35*2+x=100
b) x+777-7*11=400*2-37
c) 429-x=82*5
d) 68*3+2*(153-71)=x+364

Answer 1

Doar punctu c)
 a )  35*2+x=100, 70+x=100 , x=30
b) x+700=763 ,x=63
c) 429-x=82*5, 429-x=410 , x=19
d) 204+2*82=x+364, 204+164=x+364, 368=x+364, x=4