Y=2x
x+3y=-14 use substitution method

x=-2, y=-4

Step-by-step explanation:

y=2x

x+3y=-14

In the second equation equation replace y with 2x

x+3y =-14

x +3(2x) = -14

x+6x = -14

Combine like terms

7x =-14

Divide by 7

7x/7 = -14/7

x = -2

Now we can find y

y =2x

y = 2(-2)

y = -4

x = -2 and y = -4 and (-2, -4)

Step-by-step explanation:

Step 1:  Set y to 2x in the second equation

x + 3y = -14

x + 3(2x) = -14

x + 6x = -14

Step 2:  Combine like terms

x + 6x = -14

7x = -14

Step 3:  Divide both sides by 7

7x / 7 = -14 / 7

x = -2

Step 4:  Plug in -2 for x in the first equation

y = 2x

y = 2(-2)

y = -4

(-2, -4)

 x = -2 and y = -4 and (-2, -4)

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step-by-step explanation: