Wednesday

August 20, 2014

August 20, 2014

Posted by **Jen** on Sunday, January 25, 2009 at 11:42pm.

- MATH -
**DrBob222**, Sunday, January 25, 2009 at 11:52pm3x+y+60=180 5y-5+2x=180

**I would change the first one to**

3x+y=120 and second one to

2x+5y=185

Multiply equation 1 by -5 and add to equation 2 to eliminate y. Solve for x.

**Related Questions**

math word problem - the boiling point of water 212 degree f. this is 180 degree ...

math angles - find the measure of m<ABC,m<DBC? we need more information ...

Geometry - Which equation can be used to find the unknow ange measures? The ...

Help!Math...Again!!!PLease Help! - Two cars leave town going in the same ...

math - Mike is saving money for a new bike that costs $180.00. If m represents ...

Trig (Last URGENT) - sin2x+cosx=0 , [-180,180) = 2sinxcosx+cosx=0 = cosx(2sinx+1...

Trig. - 4cosBeta=1+2cosBeta 2cosBeta=1 cosBeta=1/2 60 degrees +/- 180--is this ...

MATH! - The ratio of two supplementary angles is 2:7. What is the measure of the...

Physics (Algebra Bit) - I see that this is a quadratic equaion and it has been a...

math - Solve for x if sin2x=cos(x+30) for x [-180;180]