Saturday

October 25, 2014

October 25, 2014

Posted by **Donald** on Thursday, July 8, 2010 at 3:59am.

2r - 9s = -17

9r + 2s = 51

- algebra -
**drwls**, Thursday, July 8, 2010 at 5:05amMultiply your first equation by -9 and the second equation by 2.

-18r + 81s = 153

18r + 4s = 102

Next, add those two equations to eliminate the "r" variable.

85s = 255

Take it from there

**Answer this Question**

**Related Questions**

Algebra - Solve using the elimiation method. Show your work. If the system has ...

Alegbra - Solving for systems of equation using the elimiation method. 3x-2y=x-6...

Math - We have an important chemsitry test due and I want to make sure that I do...

Intermediate Algebra - Combine like terms: -3x^2+2x-4x^2-9+6x-2x^2+8 Solve for x...

algebra - Solve the indicated variable: 1. Volume of a cone: solve for h: V=Ļir^...

Algebra - Solve for x: h=(k/4)(x-3L) Solve for B: v-6Bxk=7B Solve for S: z+(1/7)...

Algebra - Hi, how would I solve these 2 equations using algebra? It states in ...

Algebra 2 - Solve each system 3x+2y= -2 9x- y= -6 I know how to solve for x but ...

Algebra 2 - How do I solve these inequalities: e^3x>e^x-1 -6log (subscript of...

algebra - solve for the indicated variable: a. temperature formula solve for F: ...