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Mathematics, 17.04.2020 18:02 GrainLeaf
The perimeter of a triangle DEF is 81 units. The length of side DE is twice the length of side EF, and the length of side DF is 4 units less than the length of side DE. Let s represent the length, in units, of side EF. Write an equation that can be used to find s
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The perimeter of a triangle DEF is 81 units. The length of side DE is twice the length of side EF, a...
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