" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
56 = 7 x (n-5)
56 = 7n - 35
56 + 35 = 7n
91 = 7n
n = 13
b. (6x + 10) - (14x - 6) = x + 7
6x - 14x +10 + 6 = x + 7
-8x +16 - x = 7
-9x = 7 - 16
-9x = -9
x = 1
c.
(2x + 3) x 3 = (x-1) x 5
6x + 9 = 5x - 5
6x - 5x = -5 - 9
x = -14