jeremiahterrazas
jeremiahterrazas
26-08-2016
Mathematics
contestada
2x-5y=11
4x+10y=18 elimination
Respuesta :
Castiel2201
Castiel2201
26-08-2016
2x-5y=11(multiply all by -2. turns into. -4x+10y=-22). -4x+10y=-22. 4x+10(-7.5)=18
4x+10y=18. 4x-75=18
20y=-4. 4x=75+18
y=-7.5. x=23.25
Answer) (23.25, 7.5)
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