Thursday

July 31, 2014

July 31, 2014

Posted by **Vilma** on Sunday, June 10, 2012 at 1:30pm.

For these systems of linear equations in questions

-Determine how many solutions exist

-Use either elimination or substitution to find the solutions (if any)

1. y = 2x + 3 and y = -x - 4

2. 2x + 3y = 8 and 3x + 2y = 7

3. x + y = 3 and y = x + 3

- Algebra -
**Steve**, Sunday, June 10, 2012 at 5:14pmas long as the slopes are different, there will be exactly one solution. That is true for all three of these pairs, with solutions

(-7/3,-5/3)

(1,2)

(0,3)

**Related Questions**

Algebra - Pulling my hair, need help! For the systems of linear equations in ...

algebra - i need help with these problems (either a solution or how to plug them...

Algebra - Systems of equations can be solved by graphing or by using ...

Algebra - solving linear equations w/ substitution - The question in the book ...

algebra 1 - Got a test tomorrow... Say you have a system of equations (linear), ...

algebra - o Systems of equations can be solved by graphing or by using ...

Algebra - Systems of equations can be solved by graphing or by using ...

Algebra II - How do you solve the linear equations x+y=5 3x-y=3 by use of the ...

Math - When solving a system of equations, how do you determine which method to ...

please help!! algebra - systems of nonlinear equations i need to help i have ...