Question Simplify the expression S−10a−m−i−r Evaluate S−a−m−i−r−a×9Use the commutative property to reorder the terms S−a−m−i−r−9aSolution More Steps Evaluate −a−9aCollect like terms by calculating the sum or difference of their coefficients (−1−9)aSubtract the numbers −10a S−10a−m−i−r Show Solution