20 points, find the value of x

7x – 2(x + 12) = -5 – 2 (1 - 3x)

x=17/11

Step-by-step explanation:

7x-2(x+12)=-5-2(1-3x)

First, you want to get rid of the parenthies.

7x-2x-24=-5-2+6x

Now, you want to combine all of the common terms

5x-24=-7+6x

11x-24=-7

Next, you want to add 24 to each side.

11x-24=-7

   +24  +24

Now, you want to divide 11 from both sides.

11x=17

---   ---

11    11

x=17/11

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.