Question 1081810
3-3x >= -3x-6
-3x-3 >=-3x-6
-3 is greater than equal to -6
infinite solutions.
had it not been the case, no solutions.
check
x=0; 3>=-6
x=1; 0>=-9
x=-1; 6>=-3
x=-10; 33>=24.
When the variables disappear, look at what is left.  If it is something like 3=3, infinite solutions, like this one.
If it is something like 2=4, then no solutions. IT IS NOT NECESSARY TO CONVERT IT TO 0>=-9.  ONE COMPARES THE TWO SIDES IN INSTANCES WHEN THE VARIABLES ARE REMOVED FROM BOTH SIDES.  THAT IS BOTH NECESSARY AND SUFFICIENT TO DRAW THE CONCLUSION THAT THERE ARE INFINITE OR NO SOLUTIONS.