There is a negative sign before the second set of brackets, so we remove the brackets and change the signs of all terms inside the brackets., How do we calculate in Step 1?, Remove the brackets correctly., How do we calculate in Step 2?, Find a common denominator of 10 and rewrite all fractions as equivalent fractions., How do we calculate in Step 3?, Keep the common denominator the same and add or subtract the numerators., How do we calculate in Step 4?, Simplify the fraction., How do we calculate in Step 5?

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