Question

solve for x and y

ax + by = 1
and
bx + ay = 2ab/ (a²+b²)​

Answer 1

Hola!

Step-by-step explanation:

It can be solve by using substitution method...

or

By using elimination method

I will recommend to use elimination method because this will become easy ......

multiply eq.1 by b and eq.2 by a..

abx + a²y = 2 a²b/a²+b²

abx + b²y = 1

(-) (-) (-)

____________________

y(a²-b²) = (2a²b /a²+b²)-1

$y( {a}^{2} - {b}^{2} ) = \frac{2 {a}^{2}b }{ {a}^{2} + {b}^{2} } - 1$

$y({a}^{2} - {b}^{2} ) = \frac{2 {a}^{2} b - {a}^{2} - {b}^{2} }{ {a}^{2} + {b}^{2} }$

now solve it and find the value of y

->then put that value in any eq. and find the value of x

Hope this helps u..❤❤❤