Explanation ============================== 275x=500-125x Move variable to the left side and change its sign 275x+125x=500 Collect the like terms 275x+125x=500 =====> 400x=500 Divide both sides of the equation by 400 400x/400=500 =======> x=5/4 which is the same as 1 1/4 or 1.25 Hope this helps : )
