Question

Ma gandesc la un nr. il inmultesc cu 5 la produs adaug 50 suma o injumatatesc apoi scad 34 si obtin 1
La ce nr. m.am gandit?
Rezolva intr-un singur exercitiu.
Dau coroana va rog urgent!!!!

Answer 1

ax5=b+50=c:2=d-34=1|+34
ax5=b+50=c:2=35|x2
ax5=b+50=70|-50
ax5=20|:5
a=4
coronita?

Answer 2

Raspunsul este 4.
x * 5 => y+50/2=> z- 34= 1
z= 34+1= 35=> z=35
=> y+50/2=35 => y+ 50 = 35*2=>y+50=70=>
y=70-50=20=> y=20
x*5= 20=>x= 20:5=> x= 4