Question

Resolva o sistema usando o método de adição: {X/2-3y/4=11{X/2-5y/4=13

Answer 1

x/2 - 3y/4 = 11
x/2 - 5y/4 = 13
--------------------- -
-3y/4 + 5y/4 = -2
2y/4 = -2
y = -2 . 4/2
y = -4

x/2 - 3y/4 = 11
x/2 - 3.(-4) / 4 = 11
x/2 +3 = 11
x/2 = 11-3
x/2 = 8
x= 8 . 2
x = 16