[45:(-9)-5x(-6)-(-11)]:(-4)=
proszę...
[45:(-9)-5x(-6)-(-11)]:(-4)=[-5-5x(-6)-(-11)]:(-4)=[-5-(-30)-(-11)]:(-4)=25-(-11):(-4)=36:(-4)=-9
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[45:(-9)-5x(-6)-(-11)]:(-4)=[-5-5x(-6)-(-11)]:(-4)=[-5-(-30)-(-11)]:(-4)=25-(-11):(-4)=36:(-4)=-9