1.

The solution of \[a+b+5,2a+2b-1\] is

A. \[a+b-5,2a+ab+1\]
B. \[a-b+5,2a-2b+5\]
C. \[a+b+c=9\]
D. \[ab+bc+ca=26,\]
Answer» B. \[a-b+5,2a-2b+5\]


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