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Sagot :

A= 30-(6+2)x3/12
A= 30-8x3 /(/=divisé)12
A =30-24/12
A=30-2
A=28


B=3+5+8x(5-3)/4+2
b=3+5+8x2/6
b=3+5+16/6
b=8+16/6
b~10,666


c=30/6/2
c=30/6=5/2
c=2,5

d=60/24/4
d=60/24=2,5/4=0,625

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