![lreese](/avatars/11712.jpg)
lreese
06.10.2019 •
Mathematics
B+c=7
a+b=5
a×b+b×c=18
a=?
b=?
c=?
p.s! i don’t speak englesh fluently because i’m romanian and i use google translate.
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Ответ:
a+b = 5 = 2 +3
so a = 2, b=3,c =4
axb + b xc = (2x3) + (3x4) = 6 + 12 = 18
Ответ: