Solve for y by setting one equation =to X after that you can substitute the equation into the other one let's set the first one in X= FORM X-7y=10 -2x+14y=-20
Add 7y to both sides of the first equation to let x stand alone X=7y+10 Now you can substitute x on the second equation -2 (7y+10)+14y=-20 Distribute -14y-20+14y=-20 Add and simplify Us cancel out =0 -20=-20 0=0 They are the same equations you can also divide the second equation by -2 which would make it look like this X-7y=10 -2 (x-7y=10) Let me know if I have answered your question
