Răspuns :
Răspuns:
5*(6x+4-11)+2+4=21
30x+20-55+2+4=21
30x=21-20+55-2-4
30x=60
x=60/30
x=2
Răspuns:
5[2(3x+2)-11]+2=17
5(6-7)+2=17
30x - 35+2=17
30x-33=17
30x=17+33
30x=50
x=5 supra 3
Răspuns:
5*(6x+4-11)+2+4=21
30x+20-55+2+4=21
30x=21-20+55-2-4
30x=60
x=60/30
x=2
Răspuns:
5[2(3x+2)-11]+2=17
5(6-7)+2=17
30x - 35+2=17
30x-33=17
30x=17+33
30x=50
x=5 supra 3