Question Simplify the expression 800−1540r Evaluate 800−r×1540Solution 800−1540r Show Solution Factor the expression 20(40−77r) Evaluate 800−r×1540Use the commutative property to reorder the terms 800−1540rSolution 20(40−77r) Show Solution Find the roots r=7740Alternative Form r=0.5˙19480˙ Evaluate 800−r×1540To find the roots of the expression,set the expression equal to 0 800−r×1540=0Use the commutative property to reorder the terms 800−1540r=0Move the constant to the right-hand side and change its sign −1540r=0−800Removing 0 doesn't change the value,so remove it from the expression −1540r=−800Change the signs on both sides of the equation 1540r=800Divide both sides 15401540r=1540800Divide the numbers r=1540800Solution r=7740Alternative Form r=0.5˙19480˙ Show Solution