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Mathematics, 17.11.2020 20:30 rosemarybooker

The perimeter equals 19 of a triangle with sides that measure 7x, 9x, and 3x. Find x. If necessary, leave it as a fraction. with explanation

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The perimeter equals 19 of a triangle with sides that measure 7x, 9x, and 3x. Find x. If necessary,...
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