With its numbers and variables on a white surface.
So you might wonder how to solve this problem. But I can show you how.
Step 1, Simplify the problem. 12x+60=21 Subtract the 60 from 21 so 21-60 so 39. So that was easy now try dividing. -39 divided by 12 which is -3.25. That was easy now try another one. 5x+69=12 subtract 69 from 12, 12-69, which is -57. Then do -57 divided by 5 which =-11.4. So you think you have mastered this. Try these problems 12x+14=40, 3x+50=38, 100x+4=1. Now you have mastered this unit.