Monday

March 30, 2015

March 30, 2015

Posted by **Jessie** on Thursday, December 18, 2008 at 9:35pm.

Write whether each of these systems of equations has a common solution or not. Explain

y = -x + 2 Y = 2x + 1

If you show me one and explain it, then I can probably do the rest...Thanks

- Algebra -
**Reiny**, Thursday, December 18, 2008 at 11:48pmif both of your equations are expressed as y = ..., then they are easy to solve.

You simply equate the right sides, that is,

-x+2=2x+1

-3x = -1

x = 1/3

sub that back into either one of the two original equations to get the y

I does not matter which one, you will get the same answer,

so in the first

y = -(1/3) + 2 = 5/3

what you are doing is finding the intersection point,(the common solution), of your two lines.

It is (1/3,5/3)

**Answer this Question**

**Related Questions**

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

algebra - I'm working on solving linear systems by substitution, here are the ...

Algebra - Solving systems of linear equations in 3 variables... 1) 3x-2y+2z=1 2...

Business Algebra - Produce an example of a system of equations to your fellow ...

Algebra 2 - Solving systems of linear equations in three variables. Ok so i dont...

algebra 1 - what are some methods of solving systems of linear equations

algebra - 1 Solve the set of linear equations by the matrix method : a+3b+2c=3...

Algebra - Solving system of linear equations by using the apropiate method name ...

math - Consider the pair of linear equations below. 4x+6y=12 2x+3y=6 Part A: ...

Math-Help - Consider the pair of linear equations below. 4x+6y=12 2x+3y=6 Part A...