Question

Tính : 

-(-85)-(-71)+15+(-85)

Giúp mk với !

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Answer 1

-(-85)-(-71)+15+(-85)

=85+71+15-85

=(85-85)+(71+15)

=0+86

=86

Answer 2

\(-\left(-85\right)-\left(-71\right)+15+\left(-85\right)\)

\(=85+71+15-85\)

\(=\left(85-85\right)+\left(71+15\right)\)

\(=0+86\)

\(=86\)

Answer 3

-(-85)-(-71)+15+(-85)

=85+71+15-85

=(85-85)+71+15

=0+86=86

Answer 4

Trả lời:

\(-\left(-85\right)-\left(-71\right)+15+\left(-85\right)\)

\(=\left(85-85\right)+\left(71+15\right)\)

\(=0+86\)

\(=86\)

Hok tốt!

Vuong Dong Yet