C. –13
D. –14
Kunci Jawaban: A
Pembahasan
(12 + 8) + (–3n) = –22
20 – 3n = – 22
– 3n = – 22 – 20
– 3n = – 42
n = –3/–42 = 14
2. 72 – (520 : 8) = …
C. –13
D. –14
Kunci Jawaban: A
Pembahasan
(12 + 8) + (–3n) = –22
20 – 3n = – 22
– 3n = – 22 – 20
– 3n = – 42
n = –3/–42 = 14
2. 72 – (520 : 8) = …
Editor: Nahrudin
Sumber: Kemendikbud