Solve Equations Using the Subtraction and Addition Properties of Equality · Example 11
The MacIntyre family recycled newspapers for two months. The two months of newspapers weighed a total of 57 pounds. The second month, the newspapers weighed 28 pounds. How much did the newspapers weigh the first month?
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OpenStax, Elementary Algebra 2e · §2.1 Solve Equations Using the Subtraction and Addition Properties of Equality · Example 11
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