Answer:
y-3= -3.(x+10)
Step-by-step explanation:
x=3
7x-3=18
7x=18+3
7x=21
use the identity a²-b²=(a-b)(a+b)
x²-4=(x-2)(x+2)
so the answer is x-2
c - 0.06c = 0.94c
total bill = 0.94c
