Question

ALGUEEEEEM RESPONDE URGENTE ❤❤

Answer 1

y=9-3x
2x-3y=-5

no lugar do y vc coloca o 9-3x --> y=9-3x
2x-3(9-3x)=-5
2x-27+9x=-5
2x+9x=-5+27
11x=22
x=2
no lugar do x vc coloca o 2
3x+y=9
3(2)+y=9
6+y=9
y=9-6
y=3

x=2:y=3