2.) solve for n: 4n-28=8 a. zero b. 5 c. 7 d. none of the above 4.) solve for n: 6(n-2) + 2n = 7n +3 (n-2) a. -3 b. -9 c. all real solutions d. no solution 5.) when you simplify each side of the equation 2-7(3n+2) = -5(4n+2) you will get the equivalent equation -15n-10 = -20n-10 a. true b. false