Question

Math help.

Answer 1

I need help on the addition method...

Answer 2

any idea?

Answer 3

1. multiply the entire second equation by 5
2. add the equations together
3. being left with y, solve for it
4. solve for x with the y value

Answer 4

actually both the equations represent the same line.
if you multiply second equation by 5 and then add you get 0=0
If you multiply second equation by -5 ,you get first eq.
-7x+4y=6
4y=7x+6
\[y=\frac{ 7 }{4 }x+\frac{ 6 }{ 4}\]
or
\[y=\frac{ 7 }{ 4 }x+\frac{ 3 }{2 }\]
solution is (x,7/4x+3/2)

Answer 5

actually there are infinite solutions.
Giving different values to x you get different values of y.

Answer 6

Yes, I agree with surjithayer, and found my way to the solution.

Answer 7

thank you guys