Question

Resolva:

{2^x+y = 1
{3^x+2y = 3

Answer 1

Olá Gabriel
2^(x+y)=1 <=> 2^(x+y)=2° => x+y=0
3^(x+2y)=3 => 3^(x+2y)=3¹ =>x+2y=1
x+y=0 => x=-y
x+2y=1
-y+2y=1 => y=1
x=-y => x=-1
S={(-1,1)}
pronto