A +b-c-d если a = 2.1 b= -4.3 c = - 3.8 d = 1.6

Question

A +b-c-d если
a = 2.1
b= -4.3
c = - 3.8
d = 1.6

Answer 1

2.1-4.3+3.8-1.6=0 ....

Answer 2

2.1+(-4.3)-(-3.8)-1.6=0