Question

find the value of x​

Answer 1

Answer:

40+4x+3x=180

40+7x=180

7x=180-40

7x=140

x=140/7

x=20

Mark as a brainliest answer dude :-)

Answer 2

Answer:

20°

Step-by-step explanation:

40°+4x+3x=180°

40°+7x=180°

7x=180°-40°

7x=140°

x=140°/7

x=20°