Question

5x + 3y =22
8x + 5y = 8

Answer 1

Tudo bem
2x+3y = 22
2x = 22-3y
x = 22-3y/2 - Substituindo y = 11,42
x = 22-3(11,42)/2
x = 22-34,26/2
x = -12,26/2
x = -6,13 * 

8x+5y = 8
8(22-3y/2)+5y = 8
176-24y/2 + 5y = 8
176-24y+10y/2 = 8
-14y = 16-176
-14y = -160 (-1)
14y = 160
y = 160/14
y = 11,42 *