Posted by **kyle** on Tuesday, December 5, 2006 at 10:23pm.

I'm stuck on this problem. Can you help?

-4x-9y=1

-x + 2y =-4 WHat is x and y?

Two equations in two unknowns. Here is a quick way to solve them

-4x - 9y = 1

4x - 8y = 16

(I got that my multiplying both side so the secind equation that you provided by -4)

Now add the two equations:

-17y = 17

y = -1

Use that and any of the first equations to solve for x.

## Answer this Question

## Related Questions

- algebra - how would i find an equation of a line that goes through points(1,6) ...
- math - how do i solve two step equations? Do you mean two equations in two ...
- Physics - You are given vectors A = 5.0i - 6.5j and B = -2.5i + 7.0j. A third ...
- algebra - A bicyclist rode into the country for 5hr. In returning her speed was ...
- Algebra1!!! - 1.Six pears and three apples cost $3.90. Two pears and five apples...
- Math - A glass is filled with water and the total weight is 220g. If the glass ...
- Math - Suppose you have two numbers. The difference of the two numbers is 12. ...
- Algebra - Wrtie an equation of a line passing through (6,10) and (6,-6 y= mx + b...
- secant line, tangent line - f(x) = sqrt(x-1), 1<=x<=3 Let A = (a,f(a)), ...
- help! - Can you please give me one of them so I cansolve for the other one?...