Question: solve 3n-5=-8(6+40n) .
3n - 5 = -8(6 + 40n) -- multiply out the brackets
3n - 5 = - 48 - 320n -- group the n-terms on one side and the constant values on the other
3n + 320n = 5 - 48 -- now a bit of arithmetic
323n = -43 -- divide through by 323
n = -43/323