Tolong bantu jawab ya kakak kakak pakai jalan​

Jawaban:

1. ( b, d)

2.

3× + 5 = 13 – ×

3× + × = 13 – 5

4× = 8

x = 8/4

x = 2

Jawaban:

A n B n C = {b, d}

3x + 5 = 13 – x

3x + x = 13 – 5

4x = 8

x = 8/4

x = 2