Jika x merupakan penyelesaian dari 3(4x + 6) = 2(3x – 6) – 18, maka nilai x + 5 adalah ….
Jawaban:
-3
Penjelasan dengan langkah-langkah:
3(4x + 6) = 2(3x – 6) – 18
(3 × 4x) + (3 × 6) = (2 × 3x) – (2 × 6) – 18
12x + 18 = 6x – 12 – 18
12x – 6x = -12 – 18 – 18
6x = -48
x = -48 ÷ 6
x = -8
Maka, nilai x + 5
= x + 5
= -8 + 5
= -3
Jawaban:
3(4x + 6) = 2(3x – 6) – 18
12x + 18 = 6x – 12 – 18
12x – 6x = -12 – 18 – 18
6x = -48
x = -48/6
x = -8
x + 5 = – 8+ 5 = -3