Bad at math

2x=360/4
2x=90
x=45

This is literally only two steps.

360 ÷ 4 = 90

90 ÷ 2 = 45 which means 45 x 2 = 90, therefore 45 is X

45 is the speed limit

This is how math teachers expect you to use algebra but instead I'm using it to impress people online

45

2x is 360/4. This means X is half of what 360/4 is.
360/4=90
90/2=45

Thus X is 45. Drive no faster than 50mph.

45mph

yep it's 45

45 I think

Yeah 45