" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x+7=40
2x=33
x=33/2
x=16i 1/2
(2x + 7) :2 = 20
x+ 3,5 = 20
x= 16,5
x+7 =23,5
(2x+7) :2 = 20
x+3,5 = 20
x = 20-3,5
x = 16,5