Question Simplify the expression 1−2r Evaluate 1−r×2Solution 1−2r Show Solution Find the roots r=21Alternative Form r=0.5 Evaluate 1−r×2To find the roots of the expression,set the expression equal to 0 1−r×2=0Use the commutative property to reorder the terms 1−2r=0Move the constant to the right-hand side and change its sign −2r=0−1Removing 0 doesn't change the value,so remove it from the expression −2r=−1Change the signs on both sides of the equation 2r=1Divide both sides 22r=21Solution r=21Alternative Form r=0.5 Show Solution
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