Question

resuelve las siguientes ecuaciones
a) -6x - (8-4x) =7 + (x-3)
b)3x-(5x-21)=6x+(9-4x)

Answer 1

a) -6x - (8-4x) =7 + (x-3)

-6x -8 +4x = 7 +x-3

-2x - 8 =4 +x

-12 = 3x

x= -4

b)3x-(5x-21)=6x+(9-4x)

3x -5x +21 = 6x +9 -4x

-2x +21 = 2x +9

12 = 4x

x= 3