Hello.
X= −5/14 y
Step 1: Add -15x to both sides.
x−5y+ −15x= 15x+ −15x
−14x−5y=0
Step 2: Add 5y to both sides.
−14x −5y+5y= 0+5y
−14x=5y
Step 3: Divide both sides by -14.
−14x/−14= 5y/−14
x= −5/14 y
Have a nice day