Question

Se A= - 3/7, B= 5/2, C = -3, calcule os valores de:

a) (-A+B)-C=

b) (-A+B)-D=

Answer 1

Resposta:

a)

$( - \frac{3}{7} + \frac{5}{2} ) - 3 \\ ( \frac{ - 6 + 35}{14} ) - 3 \\ \frac{29}{14} - 3 \\ \frac{29 - 42}{14} = \frac{13}{14}$

b) falta o valor de D .