P = 10
Explanation:
Combine like terms: -0.25p = -2.5
Divide both sides: by -0.25
Solution: p = 10
If 20 sandwiched are cut into 3rd's that 20*3 which equals 60.
20 * 30 = 60
So, there are 60 sandwich pieces.


multiply both sides by .4 to isolate the x variable.

x = 1.6