X=12 you take away 1x from four then divide 36 by 3x
Answer:
It would be 5.5
for a better understanding, look it up on google
Answer:
draw a right angle triangle
Step-by-step explanation:
Let one of the angles be A
cos A = sin (90-A)
90 - x - 20 = x
2x = 70
x = 35 degrees