Question

Find the value of x​

Answer 1

Answer:

6x-40+5x+10+4x-30= 180°

6x+5x+4x-40+10-30=180°

11x+4x-30-30=180°

15x-60=180°

15x=180°+60

15x=240

X=240/15

X=16

hope it helps you

Answer 2

Answer:

Mark me as the brainliest...plzzz

Step-by-step explanation:

6x - 40

6x = 40

6x/6 = 40/6

x = 6.66667

5x + 10

5x = -10

5x/5 = -10/5

x = -2

4x - 30

4x = 30

4x/4 = 30/4

x = 7.5