Question

I need help with algebra ?!?!??!

Answer 1

May I know your question please, so that we can help you accordingly!

Answer 2

Given the equations 2x + 4/3 y = 1 and y - 9/13 x = 9, by what factor would you multiply the first equation so that combining the two equations would eliminate x?


-9/26


9/26


1/2


-9/13

Answer 3

In order to eliminate x you need to have the coefficient of x in both the equations same.

In the first equation, the coefficient of x is 2 and in the second equation, the coefficient of x is \(\cfrac{-9}{13}\)

So, you need to multiply the coefficient of x in the first equation with a number (let it be a) to get the coefficient of x in second equation.

2 * a = \(\cfrac{-9}{13}\)

Answer 4

Just find "a".