Question Factor the expression 3(21−y) Evaluate 63−3ySolution 3(21−y) Show Solution Find the roots y=21 Evaluate 63−3yTo find the roots of the expression,set the expression equal to 0 63−3y=0Move the constant to the right-hand side and change its sign −3y=0−63Removing 0 doesn't change the value,so remove it from the expression −3y=−63Change the signs on both sides of the equation 3y=63Divide both sides 33y=363Divide the numbers y=363Solution More Steps Evaluate 363Reduce the numbers 121Calculate 21 y=21 Show Solution
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