116k views
5 votes
Solve the system of equations by using elimination or substitution:

-3x + 2y = 3
4x + 3y = -4

1 Answer

4 votes

Final answer:

To solve the system of equations -3x + 2y = 34x + 3y = -4, we can use the method of elimination. By multiplying the first equation by 4 and the second equation by 3, we can eliminate the y variable when we subtract the two equations. The solution to the system of equations is x = -330/51 and y = 124/17.

Step-by-step explanation:

To solve the system of equations -3x + 2y = 34x + 3y = -4, we can use the method of elimination. By multiplying the first equation by 4 and the second equation by 3, we can eliminate the y variable when we subtract the two equations:

-12x + 8y = 136

12x + 9y = -12

Adding these two equations, we get 17y = 124. Dividing both sides by 17, we find that y = 124/17. Substituting this value back into one of the original equations, we can solve for x. Let's substitute it into the first equation:

-3x + 2(124/17) = 34

-3x + 248/17 = 34

-3x = 34 - 248/17

-3x = (34*17 - 248)/17

-3x = (578 - 248)/17

-3x = 330/17

x = (330/17)/-3

x = -330/51

So the solution to the system of equations is x = -330/51 and y = 124/17.

User DaniCee
by
7.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories