Question

a - ( - b - c - d ) + ( - c + f )
a+(-b-c-d)-(c-f)
a-(-b+c-d)+(c-f)
a+(b-c+d)-(-c+f)

Answer 1

незнаю даже A - ( - b - c - d ) + ( - c + f )
a+(-b-c-d)-(c-f)
a-(-b+c-d)+(c-f)
a+(b-c+d)-(-c+f)