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The MacIntyre family recycled newspapers for two months, weighing 57 pounds in total. The second month weighed 28 pounds. How much did the first month weigh?
A27 pounds
B29 pounds
C85 pounds
D31 pounds
Answer & Solution
Correct answer: B. 29 pounds
1. Let x represent the weight of the first month's newspapers.
2. Translate into an equation: x plus 28 equals 57.
3. Subtract 28 from both sides: x equals 29.
4. Check: 29 pounds plus 28 pounds equals 57 pounds, matching the total given.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 2 "Solving Linear Equations and Inequalities", section 2.1 Solve Equations Using the Subtraction and Addition Properties of Equality_
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