Selesaikan persamaan berikut ! A. 3t + 2 = 2 + - 5 B. |5 x + 3| = 8 materi : persamaan dan pertidaksamaan linear satu variabel yang memuat nilai mutlak mohon di

A. 3t + 2 = 2 +- 5
3t + 2 - 2 = +-5
3t = +-5
=> 3t = 5
t = 5/3
=> 3t = -5
t = -5/3
nilai t1 = -5/3 dan nilai t2 = 5/3
B. |5x+3| = 8
5x + 3 = 8
5x + 3 = +-8
=> 5x + 3 = 8
5x = 8+3
5x = 11
x = 11/5
=> 5x + 3 = -8
5x = -8+3
5x = -5
x = -5/5
x= -1

nilai x1 = -1 dan x2 = 11/5

^_^