Question

{x+y= 32
{x-y=18
como resolve esse sistema ?

Answer 1

  x + y = 32
  x - y = 18
 
  2x = 50
  x = 50/2
   x = 25

x + y = 32
25 + y = 32
 y = 32 - 25
y = 7     ok

Answer 2

x+y = 32
x- y = 18

2x = 50
x= 50 /2
x= 25

x+y = 32
25 +y = 32

y= 32-25
y= 7

(25,7)