Question

What is the value of the x variable in the solution to the following system of equations?

4x − 3y = 3
5x − 4y = 3

x can be any number as there are infinitely many solutions to this system

There is no x value as there is no solution to this system

−3

3

Answer 1

1) you want to get rid of the y's
2) 1st you multiply to first equation by 4 to get 16x-12y=3
3) then you multiply the second equation by -3 to get -15x+12y=-9
4) add both of the equations and automatically the y's cancel out
5) you are left with x=-6

Hope that helps :D

Answer 2

your "2)" is off i bit; 4*3 = 12 on the end, not 3

Answer 3

thnx .... i was about to change that :)

Answer 4

the concepts you present are good, the mathing needs work tho ;)

so #5 would need to be adjusted as well