Hi I am new my friend told me to get help here.please can you help me by telling me an easy method to solve this.
9y+2x=
There is no way to "solve" this. It is just an expression, since you have failed to complete the equation.
Even if you take care of that, and you wind up with an equation such as
9y+2x = 13
That equation represents a line. You can pick any value of x (or y) you want, and it is easy to calculate the value of y (or x) which makes the equation true. For example, if y=1, then
9*1+2x = 13
2x = 4
x = 2
So, review the section in your text, and analyze the examples there to see what you are missing. There is also a wealth of information online via google.