Question Find the roots z=72Alternative Form z=0.2˙85714˙ Evaluate 2−7zTo find the roots of the expression,set the expression equal to 0 2−7z=0Move the constant to the right-hand side and change its sign −7z=0−2Removing 0 doesn't change the value,so remove it from the expression −7z=−2Change the signs on both sides of the equation 7z=2Divide both sides 77z=72Solution z=72Alternative Form z=0.2˙85714˙ Show Solution
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