Question Simplify the expression a−9 Evaluate (a−4)−5Remove the parentheses a−4−5Solution a−9 Show Solution Find the roots a=9 Evaluate ((a−4)−5)To find the roots of the expression,set the expression equal to 0 (a−4)−5=0Remove the parentheses a−4−5=0Subtract the numbers a−9=0Move the constant to the right-hand side and change its sign a=0+9Solution a=9 Show Solution
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