Ill give brianliest if right pls help Angry Southerners joined groups like the Red Shirts because

they blamed the North for ending slavery.
they wanted to meddle in Northern affairs.
they needed an organization to rebuild their cities.
they wanted to extend slavery into the North.

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!