Question

Y= -4 +6

3x + 4y = -2
Is (2, 2) a solution of the system?

Help!

Answer 1

`{y,x}={2,-10/3}` ( No)

Step-by-step equation:

System of Linear Equations entered :

[1] y=-4+6

[2] 3x+4y=-2

Equations Simplified or Rearranged :

[1] y = 2

[2] 4y + 3x = -2

Graphic Representation of the Equations :

0? + y = 2 3? + 4y = -2

Solve by Substitution :

// Solve equation [1] for the variable y

[1] y = 2

// Plug this in for variable y in equation [2]

[2] 4•(2) + 3x = -2

[2] 3x = -10

// Solve equation [2] for the variable x

[2] 3x = - 10

[2] x = - 10/3

// By now we know this much :

y = 2

x = -10/3

We are done

Solution :

{y,x} = {2,-10/3}