What is 2y+x=-6 and y=-2x+0 using substitution method?

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Mathematics

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27 January, 20:26

What is 2y+x=-6 and y=-2x+0 using substitution method?

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Athena Compton · Answer 1

2y + x = - 6

y = - 2x + 0

We can substitute the second equation into the first one.

2y + x = - 6

2 (-2x + 0) + x = - 6

-4x + x = - 6

-3x = - 6

Divide - 3 on both sides.

x = 2

Now, plug x = 2 into any equation and solve for y.

y = - 2x + 0

y = - 2 (2) + 0

y = - 4

The solution to the system of equations is (2,-4).