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Verified answer
Bab AljabarMatematika SMP Kelas VII
9m + 4mn + (-12) - 7mnl = 9m + 4mn - 12 - 7mnl
= 9m + 4mn - 7mnl - 12
= m (9 + 4n - 7nl) - 12
Verified answer
9 m + 4 mn +( - 12 ) - 7 mnl=>> m ( 9 + 4 n - 7 nl ) + ( - 12 )