2x + 12 = 18 – x
To solve the equation 2x + 12 = 18 - x, you need to isolate the variable x on one side of the equation.
Step 1: Combine like terms
2x + x + 12 = 18 - x + x
3x + 12 = 18
Step 2: Move the constant to the other side of the equation
3x = 18 - 12
3x = 6
Step 3: Divide both sides by 3 to solve for x
3x/3 = 6/3
x = 2
Therefore, the solution to the equation 2x + 12 = 18 - x is x = 2.