Respuesta :

2.
5x+6=3x+4
2x=-2
x= -1

3. 
7n-29=4n+7
3n=36
n=12
The answer to number 2 is -1 because 5x+6=3x+4
-3x. -3x
2x+6=4
-6. -6
2x=-2
So divide by 2 and -2/2=-1