Question Simplify the expression 6−a Evaluate 7−a−1Solution 6−a Show Solution Find the roots a=6 Evaluate 7−a−1To find the roots of the expression,set the expression equal to 0 7−a−1=0Subtract the numbers 6−a=0Move the constant to the right-hand side and change its sign −a=0−6Removing 0 doesn't change the value,so remove it from the expression −a=−6Solution a=6 Show Solution
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