Question

Resolva as Equaçoes 6 + x = 6,4  e 6 - 3x = - 10 - 4x 

Answer 1

6 + x = 6,4          6 - 3x = -10- 4x
x = 6,4 - 6           - 3x + 4x = - 10 + 6
x = 0,2                  x = -4

Answer 2

6+x=6,4
x=6,4-6
x=0,4

6-3x=-10-4x
6=-10-4x+3x
6=-10-x
6+10=-x
-16=x