Iwant to paint two rooms. one room has 3 walls that are 12 feet high and 16 feet wide. the other room has 2 walls that are 12 feet high and 12 feet wide and 2 walls that are 12 feet high and 14 feet wide. assume i am only applying one coat of paint. each can of paint will cover 600 sq ft. how many cans of paint do i need to buy?

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

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )