noremacnoslen noremacnoslen
  • 03-12-2020
  • Mathematics
contestada

7.) Зу = 2-х
2y + 10 = 6x

Respuesta :

iswaryalakshmi2007 iswaryalakshmi2007
  • 03-12-2020

Answer:

By cross multiplication method

x=

(a

1

b

2

−a

2

b

1

)

(b

1

c

2

−b

2

c

1

)

&

y=

(a

1

b

2

−a

2

b

1

)

(c

1

a

2

−c

2

a

1

)

Where a

1

x+b

1

y+c

1

=0 & a

2

x+b

2

y+c

2

=0

are 2 lines

⇒x=

2(−2)−(3×3)

3(−6)−(−2)(−17)

=

−13

−52

=4

y=

2(−2)−(3×3)

(−17)3−(−6)2

=

−13

−39

=3

⇒

x=4&y=3

Answer Link

Otras preguntas

How did the New Deal and the Great Society change the role of the federal government?
I really dont understand please help Simplify: cotθ/cosθsecθ
why is a lake with a clay bottom able to hold more water than a lake with a sand bottom​
which of the following terms discribes the measure indicated by the black arrow below
what is the solution of the equation x to the power of 2=64
what does absolute value do?
Please Help!!!!!!!!!!!!!
Suppose you have $10000 in your checking account. you withdraw $500 cash from your account and hide it under your pillow for future use. if the required reserve
ANSWER QUICK Identify the sentence pattern. The lovely children are my nephews. S-V-O S-LV-PN S-V
benjamin franklin proposed th albany plan in effort to?