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11x = 11.15
x = 15 cm c.
5x + 6x = 165
15x 1 per 3 x di tambah 15x 2 per 5= 15×11
sederhanakan dgn faktor 3
5x + 15 × 2per5 x = 15×11
sederhanakan dgn blgan 5
5x + 3×2x= 15×11
trs kalikan bilangan nya
5x + 3 × 2x= 165
hitung hasil kalinya
5x + 6x = 165