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both have equal length because sides of square are equal
(6x-1)=(4x+6)
6x-4x=6+1
2x=7
X=7/2=3.5
x is 3.5
hear the values and also check
(6*3.5-1)(4*3.5+6)
(21-1)(14+6)
20=20
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6x-1= 4x+6
2x = 7
x = 7/2
Side=
= 4(7/2) + 6
= 14+6
= 20cm
2(6x-1+4x+6) = 2(10x+5)
By substituting value of x,
2(10*7/2 + 5)
2(35+5)
2(40)
80
Hence, side of square = 20 cm
Therefore perimeter = 80cm
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