Question

2.(3-k)=3.(k-4)+15 me ajudem​

Answer 1

Resposta:

2.(3-k)=3.(k-4)+15 ⇔

⇔ 2*3 - 2k = 3k -3*4 + 15

⇔ 6 -2k = 3k -12 + 15

⇔ 6 +12 -15 = 3k + 2k

⇔ 3 = 5k

⇔ \frac{3}{5}

5

3

= k