Question Simplify the expression Solution 220−19r Evaluate 255−35−r×19Use the commutative property to reorder the terms 255−35−19rSolution 220−19r Show Solution Find the roots Find the roots of the algebra expression r=19220Alternative Form r≈11.578947 Evaluate 255−35−r×19To find the roots of the expression,set the expression equal to 0 255−35−r×19=0Use the commutative property to reorder the terms 255−35−19r=0Subtract the numbers 220−19r=0Move the constant to the right-hand side and change its sign −19r=0−220Removing 0 doesn't change the value,so remove it from the expression −19r=−220Change the signs on both sides of the equation 19r=220Divide both sides 1919r=19220Solution r=19220Alternative Form r≈11.578947 Show Solution