Addition to cancel out −18: To isolate the variable p, we need to add 18 to both sides of the equation to cancel out the −18 on the left side.Calculation: p−18+18=3+18
Simplifying both sides: Now, we simplify both sides of the equation.Calculation: p=3+18
Finding the value of p: Adding the numbers on the right side gives us the value of p.Calculation: p=21
More problems from Solve linear equations: mixed review