Răspuns :
(x+1)3=12
3x+3=12
3x=9
x=3
(2y+1)2=30
4y+2=30
4y=28
y=7
Acesta este raspunsul !
Răspuns:
2/3=(x+1)/6
2×6=3(x+1)
12=3x+3
12-3=3x
x=9:3=>x=3
______________
2/3=10/(2y+1)
2(2y+1)=3×10
4y+2=30
4y=30-2
y=28:4=>y=7
_______________
2/3=4/6=10/15