College PreAlgebra
posted by Kameesha .
Solve 14x7(4x)< 3(2x15). Write your solution using set builder notation. Please show all of your work.

14x7(4x)< 3(2x15)
get rid of the parentheses:
14x  28 + 7x < 6x  45
collect variables and constants:
13x < 17
13x > 17
x > 17/13
I'll let you reformulate in the notation of your choice.