matematik questions

Hello,

 

(\(x,y=0,\frac{7}{5}\)), the steps I will show soon.

 

Straight

Hello Guest,

 

here are my steps:
 

rewrite the system of equations to:

 

\(4x+5y=7\) 

\(13x+5y=7\) ,

 

\(4x+5y=7\)

\(-13x+5y=-7\),

 

\(-9x=0\),

 

\(x=0\),

 

\(4*0+5y=7\),

 

\(y=\frac{7}{5}\),

 

\((x,y)=(0,\frac{7}{5})\),

 

\(4*0+5*\frac{7}{5}=13*0+5*\frac{7}{5}=7\),

 

so \(7=7=7\) (it's true), finally is the solution:

 

\((x,y)=(0,\frac{7}{5})\)

 

Straight