Answer:
x=29
Explanation:
Since this is a straight line, it has to be 180 degrees in total.
Solve x+35+4x=180.
Add the similar numbers. (5x+35=180)
Subtract 35 to 180 (145)
Solve for this by divding 145 by 5: 5x=145
145/5 = 29
So, x = 29.
(To check your answer, subsitute it in. 4x29 = 116. 29+35=64. Add both numbers together, making it equal to 180.)