Thursday

November 27, 2014

November 27, 2014

Posted by **Cassie** on Tuesday, September 8, 2009 at 6:21am.

3r - 7s =-29

7r + 3s = 29

What is the solution of the system?

Type an ordered pair. Type an interger or a fraction or type N if there is no solution or type 1 if there are infinitely many solutions.

- algebra -
**Dr Russ**, Tuesday, September 8, 2009 at 6:36amThis can be solved as there are two unknowns and two equations.

I would multiply the top by 3 and the bottom by 7 and then add the two equations together.

9r-21s=87

49r+21s=203

add

58r=290

r=5

subsiitute in the first equation

15-7s=29

7s=-14 so s=-2

**Answer this Question**

**Related Questions**

Math - Solve by the elimination method. 4x +5y=1 8x +10y=2 What is the solution ...

Algebra - Solve by the elimination method. 5r-7s=-37 7r+5s=37 What is the ...

algebra - solve by elimination method what is the solution of the system? 0.3x-0...

Algebra - Solve the following system of equations by the elimination method. 1/...

Algebra - Solve by substitution method. 6x+9y=-12 -5x+y=27 What is the solution ...

math - Solve the system of equations by graphing. Then Classify the system? 4u+v...

math - Solve the system of equations by graphing. Then classify the system? y= -...

math - Solve the system by graphing. Then classify the system.? 6x-y=50 6x+7y=-...

Math Help PLEASE - Solve the system of equations by graphing then classify the ...

Algebra....HELP!! - Use the elimination method to solve the system of equations ...