Thursday

March 5, 2015

March 5, 2015

Posted by **Amanda** on Wednesday, November 11, 2009 at 1:56pm.

2r-5s=-33

5r+2s=48

I keep getting different answers... I can never get these right.... so first I multiply the first equation by 2 and the second by 5?

- math -
**Amanda**, Wednesday, November 11, 2009 at 1:59pmcan someone please check my answer?

the answer I got was s= -69/-21 or 3.28

- math -
**zorro**, Thursday, November 12, 2009 at 11:41amBy what can you multiply that would cause one of the variable letters to drop out? Positive 10 of whatever plus negative 10 of whatever else would do the job. Your first inclination was pretty much right on the money. Make sure to multiply whatever you use all the way across.

**Answer this Question**

**Related Questions**

Algebra - I am trying to solve the sytems of equations using the elimination ...

algebra2 - solve the systems of equation: First : 4x-2y = 2 Second: y = -4x-7 ...

algebra II - Select the best possible first step to solving the system by first ...

Math - Can someone please help with this problem? Solve by the elimination ...

Substitution Method in Algebra!HELP PLZ! - Use the Substitution method to solve ...

Math - Could someone please help me. Solve the linear equation by substitution. ...

math - Please solve the system with the elimination method. Explain each step as...

need guidance on an algebra problem - 20 x+3(y-1)=11 2(x-y)+8y = 28 multiply ...

Algebra - To solve the following system of equations by elimination, which step...

subsitution method - Can some one show me how to use the Substitution method to ...