-6y= -20 + 2x
2x – 4y=0

Solve by elimination

Step-by-step explanation:

Given Equations:

           Equation:1

Solving Equation:1 Adding '' to both the sides:

Adding '20' both the sides:

                Equation:2

 Equation:3

Subtracting Equation:3 From Equation:2

Putting the value of 'y' in equation:3

Adding '8' to both the sides

SO,  

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

the function makes a strait line horizontally with no x intercept but a y intercept at 9.