Find the value of x
2.25x + 5 = 13.5x + 14

x = -.8

Step-by-step explanation:

2.25x + 5 = 13.5x +14

1)First, we cancel the sides evenly:

2.25x + 5 = 13.5x +14

-5 -5

2)5 on the left cancels out, 14 is now 9. We cancel the 13.5x onto the other side:

2.25x = 13.5x +9

-13.5x -13.5x

3)13.5x cancels on the left, on the right it is now -11.25x.

4)With that being said, all we have to do is divide the -11.25 to the other side to get the value of x.

-11.25x = 9

/-11.25 /-11.25

5)Which gives you the value of x, -.8

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).