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Mathematics, 14.07.2020 01:01 imelda249

The perimeter of a triangle is 7 a − 11 b . If two of its sides are 2 a + b and a − 9 b , what is the third side?

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The perimeter of a triangle is 7 a − 11 b . If two of its sides are 2 a + b and a − 9 b , what is th...

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