I need the answer to x. The picture didnt load last time-

x = 20º

Step-by-step explanation:

7x + x + 20 = 180

8x + 20 = 180

8x = 180 - 20

8x = 160

x = 160 / 8

x = 20

Hope that helps!

X=20

Step-by-step explanation:

When you add 7x and the x+20, they total to 180 degrees to form a flat angle so to solves this use equation 7x+x+20=180 to get x=20.

To check: input the 20 into both equations and see if they add up to 180 degrees

7x20=140

20+20= 40

140+40= 180

4

step-by-step explanation:

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5