Which equation represents a line that is perpendicular to y=x? A.
y=2x
B.
y=−x+6
C.
y=−2x
D.
y=x+1

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!