SOLUTION: Dear Tutor, Could you please help me with this problem? I'm not sure if I selected the right topic. It says" Solve the system using any algebraic method. (here is the proble

Algebra ->  -> SOLUTION: Dear Tutor, Could you please help me with this problem? I'm not sure if I selected the right topic. It says" Solve the system using any algebraic method. (here is the proble      Log On

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 Question 12407: Dear Tutor, Could you please help me with this problem? I'm not sure if I selected the right topic. It says" Solve the system using any algebraic method. (here is the problem.) x + 4y + z = 12 y - 3z = -7 z = 3 Thank you so much for helping me. Truly, Kat Answer by slksil001(7)   (Show Source): You can put this solution on YOUR website! x + 4y + z = 12.........(A) y - 3z = -7 ............(B) z = 3 ..................(C) subst (C) in B y= -7+3(3) =2 ................(D) subt. (D)&(C) in (A) x+4(2)+3 = 12 =12-8-3 =1 after you can check that your X ,Y & Z are correct by plugging them back in the equation (A): 1 + 8 + 3 = 12 0 = 0