NINA4954
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3.(2-7) = -
(-3 + 5). (-2)? =
(2-8) + (-6+7) =
5-3.(1-4) =
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3 ( 2 - 7) = 3 * - 5  = - 15

( - 3 + 5 ) ( - 2 ) = 2 * - 2 = - 4

( 2 - 8 ) + ( - 6 + 7) = - 6 + 1 = - 5

5 - 3 ( 1 - 4) = 5 - 3 * - 3 = 5 + 9 = 14