Thursday

August 21, 2014

August 21, 2014

Posted by **Lavinia** on Monday, July 8, 2013 at 3:21am.

- Math -
**Elena**, Monday, July 8, 2013 at 6:27amhttp://www.mathcaptain.com/algebra/simultaneous-equations.html

ax +by =a-b

bx-ay=a+b

ax+by +(b-a) = 0

bx –ay +(-a-b) = 0

x y 1

--------------------------------

b ↘ b-a ↘ a ↘ b

-a ↗ -a-b ↗ b ↗ -a

x/{-ab-b²+ab-a²} = y/{b²-ab+a²+ab} = 1/{-a²-b²},

x/{-a²-b²} = 1/{-a²-b²},

x=1.

y/{b² +a²} =1/{-a²-b²},

y=-1.

**Related Questions**

Algebra - 40 =15 x x - 20 This is a three part question>> first find the ...

algebra2 - Using complete sentences, explain which method you would use to solve...

math - Solve the following system of linear equations using the matrix inverse ...

math - 1. Solve for the indicated letter D=4e, for e The solution is e= 2. G(x...

Maths - Solve:- 5ax+6by=28 , 3ax+4by=18 using cross multiplication method

Algebra II - Explain, in complete sentences, which method you would use to solve...

Linear Equations - Can you please help solve this equation using the ...

calculus - When using the substitution method to solve a nonlinear system of ...

Alegbra - Solve the following systems of equations using the addition (...

algebra - What is the solution of the system? Solve the system of equations ...