Jika k merupakan penyelesaian 2(3x-5)+3 = 3(4x+2)-1,maka nilai 3k+5=….

Senin,14 Januari 2019
Pukul 14.50

2(3x – 5) + 3 = 3(4x + 2) – 1
6x – 10 + 3 = 12x + 6 – 1
6x – 12x = 6 – 1 + 10 – 3
-6x = 12
x = 12 ÷ (-6)
x = -2

x = -2
k = -2

3k + 5
(3 × (-2)) + 5
-6 + 5
-1