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4(m - 2) = 3m
4m - 8 = 3m -----> dikalikan
4m = 3m + 8 ------> dipindah ruas
4m - 3m = 8 ------> dipindah ruas
m = 8
2)
22a + 4(2a - 5)
= 22a + 8a - 20
= 30 a - 20