Question Simplify the expression −7x Evaluate 0−7xSolution −7x Show Solution Find the roots x=0 Evaluate 0−7xTo find the roots of the expression,set the expression equal to 0 0−7x=0Removing 0 doesn't change the value,so remove it from the expression −7x=0Change the signs on both sides of the equation 7x=0Solution x=0 Show Solution