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On an algebra test ,the highest grade was 42 points higher than the lowest grade. The sum of the two grades was 138 find the lowest grade

On an algebra test ,the highest grade was 42 points higher than the lowest grade. The sum of the two grades was 138 find the lowest grade
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On an algebra test ,the highest grade was 42 points higher than the lowest grade. The sum of the two grades was 138 find the lowest grade

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User Curiousdork
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7.6k points

1 Answer

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lowest = x \\ highest = x + 42

2x + 42 = 138

138 - 42

2x = 96

2x / 2x \\ 96 / 2

x = 48

48 + 42 = 90
the lowest grade is 48, while the highest is 90.
answered
User Pyderman
by
7.9k points
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