Question

resuelve los siguientes sistemas con el método de igualación
e)x/2+y/4=-7/12 f) x/3+y/4=6
x/2+y/3=-1/6 3x-4y=4

Answer 1

a) x/2 + y/4 = -7/12
b) x/2 + y/3 = -1/6

a) x= (-7/12 - y/4)2
x= -14/12-2y/4
x= -7/6 - 2y/4

a) x= -28-12y/24

b) x=(-1/6 - y/3)2
x= -2/6 - 2y/3
x= -1/3 -2y3

b) x= -3-6y/9

a = b

-28-12y/24 = -3 -6y/9
-252 -108y = 72 -144y
144y-108y = -72+252

36y = 180
y= 5

b) x/2 + y/3 = -1/6
x= -1/3 -2y/3
x= -1/3 -2(5)/3
x= -1/3 -10/3
x= -9/3
x= -3