HEL Old Navy is having a sale with 15% off all winter coats. The expression below can be used to find the discounted price, in dollars, of a coat whose original price is expressed as c.
1c - 0.15c
Which of the following expressions shows an equivalent way to determine the discounted price, in dollars, of the coat?
A 115c
B) 85c
C)1.15c
D)0.85c​

Explanation is in the file

cutt.ly/zxt1ipy

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

step-by-step explanation:

if you meant, "on the way from (3, 2) to (3, 14):

x does not change; y increases by 12.

ensure that you have copied down this problem correctly.   .