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4s = 3x+5
4.(x-1) = 3x+5
4x-4 = 3x+5
4x-3x = 5+4
x = 9
s = x-1
s = 9-1
s = 8 cm
L = s^2
L = 8^2
L = 64 cm2
keliling = 4xs
3x+5=4x(x-1)
3x+5=4x-4
5+4=4x-3x
9=x
sisi=x-1
s=9-1
s=8
luas=sxs
=8x8
=64cm"