Ok I need help with a couple more problems...

Solve using the multiplication principle: -12x = 72 x=?

Using both the addition principle and
multiplication principle, solve:
x + 1/4 x = 10
x =?

Question

Ok I need help with a couple more problems... 

Solve using the multiplication principle: -12x = 72             x=?

Using both the addition principle and 
multiplication principle, solve:
x 	+ 	1/4 	x 	= 	10
x =?

anonymous · Answer

aare these two separate questions?

anonymous · Answer

if so, -12x= 72, divide both side by -12. This yields x= 72/-12= -6 for first question.

anonymous · Answer

you can add terms with same letter components. so you have 5x/4=10 . multiply both side by (4/5), and you have x= 8.

anonymous · Answer

Yes