Question

x+y=8
4x-6y=12
como resolver

Answer 1

x + 4 = 8        x = 8 - y     x = 8 - 2      x = 6

4x - 6y = 12    4 (8 - y) - 6y = 12     32 - 4y - 6y = 12    -10y = 12 - 32       -10y = -20        

10y = 20      y = 20/10   y = 2