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2*(-4)+(-18/-6)+10=+5
-8+3+10=+5
-8+13=+5
+5=+5
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B) - 20 / 4 . 3 + (12 - 8) . (-2) = -23
(-20/4)*3+(4)*(-2)=-23
(-5)*3+(-8)=-23
-15-8=-23
-23=-23