2x +12=30

Question

show the three step then the solution

Answer 1

Step 1: Subtract 12 from both sides of the equation.
2x + 12 - 12 = 30 - 12
2x = 18

Step 2: Divide both sides of the equation by 2.
2x/2 = 18/2
x = 9

Solution: The solution to the equation 2x + 12 = 30 is x = 9.