Bjuar10
Bjuar10
16-11-2016
Mathematics
contestada
what is the substitution for 5x-2y=14, 2x-y=5
Respuesta :
FallOutBlink
FallOutBlink
16-11-2016
Okay so
5x-2y=14
2y=5x-14
y=(5x-14)/2
2x-y=5
y=2x-5
2(2x-5)=5x-14
4x-10=5x-14
x=4
y=(5[4]-14)/2
y=(20-14)/2
y=6/2
y=3
Answer: x=4, y=3
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