The third side is described in relation to one of the
equal sides, so let x = the length of one of the
equal sides.
Which equation models the problem?
O x + x + (5 - 2x) = 23
O x + x + (2x - 5) = 23
O x + x + (2x + 5) = 23
O X + (2x - 5) + (2x-5) = 23
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