Question

Solve 3x – 5y = 17

Answer 1

For x or for y?
Since you have one equation and two variables, you don't have enough info to get number solutions for x and y.

Answer 2

Depending, do you know what your solving for? coordinates? elimination? or substitution?

Answer 3

Whats is the other equation?
Do you need elimination or substitution

Answer 4

Solve 3x – 5y = 17
9x – 15y = –4

Answer 5

Start with the given system of equations:
3x-5y=17
9x-15=-4


Multiply the both sides of the first equation by -3.
-3*(3x-5y)=-3(17)

Distribute and multiply.
-9x+15y=-51

Answer 6

So we have the new system of equations:
-9x+15y=-51
9x-15y=-4



Now add the equations together. You can do this by simply adding the two left sides and the two right sides separately like this:
(-9x+15y)+(9x-15y)=(-51)+(-4)