B. 11
Penjelasan dengan langkah-langkah:
K = 2 × (p + l)
120 = 2 × ((2x + 3) + (3x + 2))
120 = 2 × (5x + 5)
120 = 10x + 10
10x = 120 - 10
10x = 110
x = 110 ÷ 10
x =
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B. 11
Penjelasan dengan langkah-langkah:
K = 2 × (p + l)
120 = 2 × ((2x + 3) + (3x + 2))
120 = 2 × (5x + 5)
120 = 10x + 10
10x = 120 - 10
10x = 110
x = 110 ÷ 10
x =![\underline{ \boxed{ \red{ \sf \: 11 \: }}} \underline{ \boxed{ \red{ \sf \: 11 \: }}}](https://tex.z-dn.net/?f=%5Cunderline%7B%20%5Cboxed%7B%20%5Cred%7B%20%5Csf%20%5C%3A%2011%20%5C%3A%20%7D%7D%7D)