Question

{2y-x/3=7 3x+y=0 metodo de comparação

Answer 1

2y = 7 +x/3

y = 7/2 +x/6

y = (7*3 + x)/6

y = (21 + x)/6

y = -3x

y = y

(21 + x)/6 = -3x

21 + x = -18x

19x = -21

x = -21/19

y = -3*-21/19
y = 63/19