You can put this solution on YOUR website! distribute to 4x+6-2x>=6x+7
It is easier to put x on the left of these although not required.
-4x>=1
divide by -4 and flip inequality
x<=(-1/4) ANSWER
so -1 should work
-4+2(4)>=-6+7 true
0 should not work
6>=7 not true
