Each of the two equal sides of a triangle are 4m less than three times the third side find the dimension of the triangle if its perimeter is 55 m
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Let the two equal side be x
2x+(3x-4)=55
2x+3x-4=55
2x+3x=55+4
5x=59
X=59/5
11.8
X=11.8
3x-4=3*11.8-4
35.4-4
31.4
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