find the length of sides in an isosceles triangle whose equal sides are 2x+15,x+3.8and unequal side is 3x+0.4
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I am not sure if the sides given are correct because if 2x+15 and x + 3.8 are equal sides, which means
2x+ 15 = x + 3.8
x = 3.8 - 15 = - 11.2 cm which seems incorrect as length cannot be negative.
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