sara78652 sara78652

21-02-2022
Mathematics

contestada

Solve the simultaneous equations
4x + 2y = -1
5x – 3y = 7

Respuesta :

nadjadzeletovic nadjadzeletovic

21-02-2022

Answer: (x,y)=(1/2,-3/2)

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mohammedtaisiralam06 mohammedtaisiralam06

21-02-2022

Answer:

4x-2y=-1 multiply by 3

5x-3y=7 multiply by 3

12x+6y=-3

10x-6y=14 add them

so =22x=11

x=1/2

5(1/2)-3y=7

2.5-3y=7 take 2.5 to the other side

-3y=4.5

y=-3/2

therefore x=1/2 and y=-3/2

Step-by-step explanation:

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