jeremiahterrazas jeremiahterrazas

26-08-2016
Mathematics

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2x-5y=11
4x+10y=18 elimination

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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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