fatimanazirksa fatimanazirksa

25-12-2021
Mathematics

contestada

9x-5y=2
3x-4y=10
can anyone please explain how the answer of this question is:
x=-4
y=-2

Respuesta :

a1a1a1a17 a1a1a1a17

25-12-2021

Answer:

9x-5y=2======>9x-5y=2===>(+)7y=-28=>y=-4=>(1)3x-4(-4)=10=>x+16=20=>x=4

3x-4y=10(1)=>(×-3)-9x+12y=-30=>(+)

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silirobert15 silirobert15

26-12-2021

ANSWER: x = -2 ; y = -4
Ok done. Thank to me :>

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