Question 196476
5x+6 <= 2(3x+7)

5x+6  <= 6x+14(by multiplying 2(3x+7))

now subtract 5x+6 on both sides

5x+6-(5x+6) <= 6x+14-(5x+6)
0<=6x+14-5x-6
0<=x+8
therefore 

-8 <=x  or 

x >= -8  is the answer