" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
f(a+2) = 4(a+2) - 7 = -19
= 4a + 8 - 7 = -19
= 19 + 1 = 4a
= 20 = 4a
= a = 20/5 = 4