Answer:
x equals -3.6
Step-by-step explanation:
5 something +20 is supposed to be 2, so you take the two off of the 20 and get 18, then divide the 18 by 5 and you'll get 3,6 and logically since it needs to be negative you need the minus before it.
Each pack would cost $4.99
The dashed boundary line means that the solutions are not on the boundary line. It is used for < and >
X + 3x = 27
4x = 27
÷ 4
x = 6.75 (smaller number)
27 - 6.75 = 20.25 (larger number).
I don't know the 'systems of equations' though, sorry.
