SOLUTION: What is the elimination method for 14x+18y=-54, -4x-14y=42

Algebra ->  Expressions-with-variables -> SOLUTION: What is the elimination method for 14x+18y=-54, -4x-14y=42      Log On


   

Question 409812: What is the elimination method for 14x+18y=-54, -4x-14y=42
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

solving by the elimination method

14x+18y=-54

-4x-14y =42



  14x  +18y=- 54

-36/7x -18y = 54   |Multiplying 2nd Equation by 9/7, adding and eliminating y

    x = 0  and y = -3   | 14*0 + 18y = -54  OR y = -3



CHECKING our Answer***

-4x-14y =42

 0 -14*-3 = 42