A)
[tex]+3+(-4)-(+3)+(+8)\\3+(-4)-3+8\\-4+8\\4[/tex]
B)
[tex]-(-15)+(-23)+43-35\\15-23+43-35\\58-58\\0[/tex]
C)
[tex]-(+96)+(-96)+68-(+44)\\-96-96+68-44\\-236+68\\-168[/tex]
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A)
[tex]+3+(-4)-(+3)+(+8)\\3+(-4)-3+8\\-4+8\\4[/tex]
B)
[tex]-(-15)+(-23)+43-35\\15-23+43-35\\58-58\\0[/tex]
C)
[tex]-(+96)+(-96)+68-(+44)\\-96-96+68-44\\-236+68\\-168[/tex]