Soal Asli PAS Ganjil Matematika Wajib Kelas 10 SMA Part 1, Terbaru 2021 Simak Kisi-kisinya

Pembuktian x = 9

|(2(9) - 3| - |-9 + 4|

|15| - |-5| = 8

15 - 5

2x - 3| - |-x + 4| = 8

Pembuktian x = 7

|(2(7) - 3| - |7 + 4| = 8

|14 - 3| - |3|

|11| - |3|

7 cocok

Kita coba x = -7

|(2(-7) - 3| - |(-7) + 4|