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Use addition to solve the linear system of equations. Show all of your work. x = y + 3 y = -4x - 3
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Use addition to solve the linear system of equations. Show all of your work.

x = y + 3
y = -4x - 3

User Ryad Boubaker
by
8.5k points

2 Answers

7 votes
I changed the first equation to y=x-3 by subtracting 3 from each side.

y=x-3
y=-4x-3

So, x-3 = -4x-3, because y =y.

So, I then solved for x, and used this number to solve for y.
User Faran Khan
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7.9k points
0 votes
You're looking for the answers to both X and Y, correct?
User Jan Zeiseweis
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7.6k points
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