Seudónimo
Seudónimo
07-12-2016
Mathematics
contestada
please help solve with work
Respuesta :
Jane80
Jane80
08-12-2016
x-4y=28
8x+4y=8
---------------
9x=36→x=4
4-4y=28→y=6
—-----------------------------------------------------------
y-5=x
4(y-5)-y=4
4y-20-y=4
3y=24
y=8
x8-5=3
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