Răspuns :
Răspuns:
1)[(ax2)+5]x4 =32
(ax2)+5=32:4=8
ax2=8-5=3
a=3:2
a=1,rest1
2){[(ax5)+42]:7}-11=200
[(ax5)+42]:7=200+11=211
(ax5)+42=211x7=1477
ax5=1477-42=1435
a=1435:5
a=287
Răspuns:
1. (x•2+5)•4=32
x= 32:4-5-2=8-5-2=1
2.[(x•5+42)-7]-11=200
x=[(200+11+7)-42]:5=176:5=35,2
3.Mihai=?
Adriana=?
Ioana=?
Daria=?
Ana =150 de puncte
Daria= 150 : 3 =50 de puncte
Ioana=50 : 2=25
Mihai =25 +15 =40
Adriana=40 -40 =0
4.{[(x+30)•5]-200}-20=20
x=20+20-(200:5-30)=
=40-10=
=30