Question

ayuda pliss es para hoy

Answer 1

$c + 3 = 7 \\ c = 7 - 3 \\ c = 4$

$b + 2 = c + 2 \\ b + 2 = 4 + 2 \\ b + 2= 6 \\ b = 6 - 2\\ b = 4$

$a + 1 = b + 1 \\ a + 1 = 4 + 1 \\ a + 1 = 5 \\ a = 5 - 1 \\ a = 4$

Respuesta:

$A = \frac{a + b + c}{3} \\ A = \frac{4 + 4 + 4}{3} \\ A = \frac{12}{3} \\ A = 4$