Question

a) (–4) + (–3) = –7

b) (4) – (–3) = 7

c) (4) – (3) = 1

d) (–4) – (–3) = –1

ayuda porfa​

Answer 1

Aplicamos ley de signos:

$+ \times + = + \\ + \times - = - \\ - \times + = - \\ - \times - = +$

En cada uno de los paréntesis para eliminarlos. Entonces:

$( - 4) + ( - 3) = - 7 \\ - 4 - 3 = - 7 \\ - 7 = - 7$

$4 - ( - 3) = 7 \\ 4 + 3 = 7 \\ 7 = 7$

$(4) - (3) = 1 \\ 4 - 3 = 1 \\ 1 = 1$

$( - 4) - ( - 3) = - 1 \\ - 4 + 3 = - 1 \\ - 1 = - 1$

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