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

Solving Linear Equations - Elimination

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 11:48pm
if 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 SOLVING LINEAR EQUATIONS AND INEQUALITIES - Please help Im am Grade 5 ...
- algebra 1 - Got a test tomorrow... Say you have a system of equations (linear), ...
- math - Determine the solution of the following systems of linear equations using...
- Algebra - Solving Linear Equations and Inequalities Solve by eliminating x (this...
- Algebra I DONT KNOW HOW TO DO 3 VARIABLES - Solving Linear Equations and ...
- algebra - I'm working on solving linear systems by substitution, here are the ...
- math - Determine the solution of the following systems of linear equations using...
- math - Determine the solution of the following systems of linear equations using...
- 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 ...

More Related Questions