
Kenneth S. answered 04/02/16
Tutor
4.8
(62)
Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
5x + 3 > 20 can be solved by first subtracting three from each side, and then dividing by 5; you get x > 17/5.
The technique(s) are the same as when solving equations, except you must beware of multiplication or division by a negative quantity, in which case the inequality symbol must be reversed. That's because although -1 > -2, 1 < 2, for example.