Question

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Будь ласка

Answer 1

$- 5 + 3 + ( - 3) - ( + 5) = - 5 + 3 - 3 - 5 = - 5 - 5 = - 10$

$2 - 7 - ( - 3) + ( - 2) = 2 - 7 + 3 - 2 = - 7 + 3 = - 4$

$1 + ( - 2) + ( + 1) - ( - 4) = 1 - 2 + 1 + 4 = 6 - 2 = 4$

$7 + ( + 3) - ( + 10) + ( - 1) = 7 + 3 - 10 - 1 = 10 - 11 = - 1$