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= 2 ( "8" + 3 ) + ( "8" - 1 )
= 2 × 11 + 7
= 22 + 7
= 29 Cm
Jadi nilai x adalah 8 CM
50.
= 3 ( 2 × "12" + 5 )
= 3 ( 24 + 5 )
= 3 × 29
= 87 Cm
Jadi nilai x adalah 12 CM