Question

Solve the system of equations.
- 10x + 3y = 5
2 =y-4

Answer 1

Explanation:

Answer 2

Explanation:

10x+3y=5;x=y-4

Solution :

{x,y} = {1,5}

System of Linear Equations entered :

[1] -10x + 3y = 5

[2] x - y = -4

Graphic Representation of the Equations :

3y - 10x = 5 y + x = -4

Solve by Substitution :

// Solve equation [2] for the variable x

[2] x = y - 4

// Plug this in for variable x in equation [1]

[1] -10•(y -4) + 3y = 5

[1] - 7y = -35

// Solve equation [1] for the variable y

[1] 7y = 35

[1] y = 5

// By now we know this much :

x = y-4

y = 5

// Use the y value to solve for x

x = (5)-4 = 1

Solution :

{x,y} = {1,5}

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