Question

30 puncte
Rezolvati in RxR sistemul de ecuatie:
{2x=4(y+1,5)-2
y-2x= - 10

Answer 1

2x=4(y+1,5)-2
y-2x=-10
y=2x-10
2x=4(2x-10+1,5)-2
2x=8x-40+6-2
2x-8x=-40+6-2
-6x=-32
x=32/6=16/3
y=2*16/3-10=32/3-10=2/10=1/5

sper sa fie de folos