bonjour
A = 13 - ( - 6 ) x 5
= 13 - ( - 30 )
= 13 + 30 = 43
B = - 12 - 15 + 16 = - 11
C = - 3 x ( - 2 ) - ( - 21 ) : 3
= 6 - ( - 7 )
= 6 + 7 = 13
d = - 36 - 2 ( 7 - 15 )
= - 36 - 2 * -8
= - 36 + 16
= - 20
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bonjour
A = 13 - ( - 6 ) x 5
= 13 - ( - 30 )
= 13 + 30 = 43
B = - 12 - 15 + 16 = - 11
C = - 3 x ( - 2 ) - ( - 21 ) : 3
= 6 - ( - 7 )
= 6 + 7 = 13
d = - 36 - 2 ( 7 - 15 )
= - 36 - 2 * -8
= - 36 + 16
= - 20