Find answers to your questions faster and easier with IDNLearn.com. Ask any question and receive timely, accurate responses from our dedicated community of experts.

Solve the simultaneous equations


Solve The Simultaneous Equations class=

Sagot :

Answer:

x = -4 and y = -1

Step-by-step explanation:

Adding the equations,

4x + 0y = -16

4x = -16

x = -4

Plugging x = -4 into the second equation,

-4 + y = -5

y = -1

Therefore, x = -4 and y = -1

Answer :

  • Value of x is-4
  • Value of y is-1

Explaination :

Here we have been given with two equations and we have to calculate the value of x and y by using elimination method.

  • 3x - y = -11 (Equation No 1)
  • x + y = -5 (Equation No 2)

From Equation No 2:-

>> x + y = -5

>> x = -y - 5

In Equation No 1:-

Substituting the value of x which we got above as (-y - 5) here.

>> 3x - y = -11

>> 3 (-y - 5) - y = -11

>> 3 × (-y - 5) - y = -11

>> -3y - 15 - y = -11

>> -4y - 15 = -11

>> -4y = 15 - 11

>> -4y = 4

>> y = -4/4

>> y = -1

Finding out value of y:-

>> x = -y - 5

>> x = -(-1) - 5

>> x = 1 - 5

>> x = -4 [tex] \: [/tex]