Simplify the expression. the linear expression quantity negative 1 over 4 times r minus 8 minus 5 over 7 times r end quantity minus the linear expression quantity negative 3 over 4 times r plus 9 end quantity negative 48 over 28 times r minus 1 negative 3 over 14 times r plus negative 17 negative 3 over 14 times r minus 1 9 over 28 times r plus negative 17