What is it in x an y intercepts of the equation

X intercepts occur where y=0, so 7x+0=21, solving for x gives x=3 which is the x intercept at (3,0). To solve for the y intercept we set x to 0, so 0+3y=21, solving for y gives y=7 which is the y intercept at (0,7)

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!