Wednesday

April 1, 2015

April 1, 2015

Posted by **Anonymous** on Thursday, May 26, 2011 at 11:30am.

From this, you can supply coefficients and calculate the right hand side from the given values of x and y.

I choose coefficients 2 and -3 to give

2x-3y=2*20-3*15=-5

I choose again coefficients, 3 and -1 to give

3x-y=3*20-1*15=45

So my equations are

2x-3y=-5

3x-y=45

Then I would proceed to solve for x and y, which should give me x=20 and y=15, as expected.

how to you solve for x and y so they give you x=20 and y=15

- math -
**Henry**, Friday, May 27, 2011 at 5:41pmWhat is the problem? What INFO was given?

**Answer this Question**

**Related Questions**

chemistry - How many of the following are true concerning balanced chemical ...

Math - A set of homogeneous simultaneous equations is given by x + ky = 0 kx + ...

Chemisty - When the following molecular equation is balanced using the smallest ...

chemistry - When the following combustion reaction is balanced using the ...

Chemistry - (1) Why are fractional coefficients permitted in a balanced ...

Chem Lab - d = m/v 1.01=m/6.80 ml m=6.868gr coefficients of reaction: 2,2,1 two ...

calculus--please help!! - I have two questions that I don't understand and need ...

Math - Name the coefficients in the polynomial 4x^2+3x-3 a. 4, -3, -3 b. 4, 3 c...

Chemistry - BrO3^-(aq)+Sn^2+(aq)+ ____ -->Br^-(aq)+Sn^4+(aq)+ _____ H20(l)and...

chemistry - Use activity coefficients to find the concentration of hydrogen ions...