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16 votes
2x + y = -4
5x - 3y = 1

Solve with elimination method

2 Answers

4 votes

Answer:

For the first equation the answer for "X" will be,


x = ( - 4 - y)/(2)

if you want me to solve for y instead then the answer will be,


y = - 4 - 2x

for the second equation the answer for "X" will be,


x = (1 + 3y)/(5)

If you want me to solve for y instead then the answer will be,


y = - (1 - 5x)/(3)

User Anaconda
by
8.0k points
5 votes
Multiply entire first equation by 3 so the y variables will cancel when you add the equations.

6x +3y =-12
5x -3y =1

Add the equations.

11x =-11
X=-1

Now use that value for x in either equation to find y.

2(-1) +y= -4
-2+y =-4
Y =-2

Solution is (-1, -2)
User Ptierno
by
8.6k points

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