7 – 2x -x +5 tolong jawab pertanyaan sya​

= 7 – 2x – x + 5

= 7 + 5 = 12

= -2x-x = -3x

= 12 – 3x

Jawaban:

7 – 2x – x + 5

2x – x + 5 + 7

x + 13