Sample Equation: 3x - 3 = 27
Multiple step:
3x - 3 = 27
+ 3 +3 Step1. Remove the -3 by adding 3 to both sides
3x = 30
÷3 ÷ 3 Step2. Remove the multiplicand 3 by dividing both sides by 3
x = 10
To check: substitute x by its value
3x - 3 = 27
3(10) - 3 = 27
30 - 3 = 27
27 = 27
