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Lyrx [107]
4 years ago
7

Please help I don’t understand.

Mathematics
1 answer:
Reptile [31]4 years ago
8 0
A+b+c+d=0
a=a
b=a+2
c=a+2+2
d=a+2+2+2

a+a+2+a+4+a+6=0
4a+12=0
4a=-12
a=-3

b=-1
c= 1
d=3

Check:
-3-1+1+3
-4+4=0
0=0 correct
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3 years ago
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12345 [234]

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Step-by-step explanation:

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