Question Simplify the expression Solution 78−a Evaluate 78−1×aSolution 78−a Show Solution Find the roots Find the roots of the algebra expression a=78 Evaluate 78−1×aTo find the roots of the expression,set the expression equal to 0 78−1×a=0Any expression multiplied by 1 remains the same 78−a=0Move the constant to the right-hand side and change its sign −a=0−78Removing 0 doesn't change the value,so remove it from the expression −a=−78Solution a=78 Show Solution