Answer:
El número es
10
Step-by-step explanation:
3a - 4 = 2(a+3)
3a - 4 = 2*a + 2*3
3a - 4 = 2a + 6
3a - 2a = 6 + 4
a = 10
Comprobación:
3*10 - 4 = 2(10+3)
30 - 4 = 2*13 = 26
5.3m questions
6.9m answers