Question

Solve using any method. All work must be shown and handwritten.

3x-y=-10
x+y=-2
show how it is solved please <3

Answer 1

x = -3

y = 1

Explanation:

3x - y = -10

x + y = - 2

x + y = - 2

x = -y - 2

replacing in other equation

3(-y - 2) - y = -10

-3y - 6 - y = - 10

rearranging the equation

-3y - y = = -10 + 6

-4y = -4

y = 1

putting this value in first eqn we get

x - y = -2

x - (1) = -2

x = -2-1

x = -3

Answer 2

`x = - 3`

`y = 1`

Explanation:

Write the system

`3x - y = - 10`

`x + y = - 2`

Solve by Elimination.

multiply the second equation by -3.

`3x - y = - 10`

`-3x - 3y = 6`

Add the Equations.

`- 4y = - 4`

`y = 1`

Plug this back in one of the equations.

`x + 1 = - 2`

`x = - 3`