30-04-2020
Mathematics

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4x+9Y=-19

-4X-7=13

Solving systems of equations using any method

Respuesta :

NyeinSu NyeinSu

30-04-2020

Answer:

x= -4.975

y= 0.1

Step-by-step explanation:

- 4x- 7 = 13 we may assume as eq 1

4x+9y = -19 this is eq 2

eq 1+2,

9y-7= -6

9y=1

y=0.1

y=0.1 in eq 1,

4x+9(0.1)= -19

4x= -19.9

x= -4.975

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