Isolate square root term: First, we need to isolate the square root term on one side of the equation.Add 18 to both sides of the equation to move the −18 over to the other side.2x+2−18+18=−14+182x+2=4
Square both sides: Now that we have isolated the square root, we square both sides to eliminate the square root.(2x+2)2=422x+2=16
Solve for x: Next, we need to solve for x. Subtract 2 from both sides to isolate the term with x.2x+2−2=16−22x=14
Divide to find x: Finally, divide both sides by 2 to solve for x.22x=214x=7