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98 = 2(4x-2) + 2(x+3)
98 = 8x-4 + 2x+ 6
98 = 10x + 2
98-2 = 10x
96 = 10x
96/10= x
9,6 = x
Panjang = 4x-2
=4(9,6) -2
= 76,8 - 2
= 74,8
Lebar = x+3
= (9,6) +3
=12,6
Jadi,selisih panjang dan lebar adalah
74,8 - 12,6 = 62,2 cm