Answer:
y=2x+105
Step-by-step explanation:
She'll spend 192 because 2400 divided by 48 equals 50 times that by 3.84 which will give you 192.
a = -5
15 - a = 20
Move the constant of 15 to the other side by subtracting it.
-a = 5
Divide by -1 to make a positive.
Check.
15 - (-5) = 20
15 + 5 = 20
20 = 20
