JasmineB2 JasmineB2

17-12-2016
Mathematics

contestada

y=x+5
x=5y+2
What if the first step in solving this equation with substitution?
y = 5y + 2
y = (5y + 2) +5
x + 5 = 5y + 2
None

Respuesta :

mathssydney mathssydney

17-12-2016

I take the second equation x=5y+2
and substitute x in the first one:
means instead of
y = x + 5
y = (5y+2) + 5

I think you have to choose second answer

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