SOLUTION: how do you work out -5x+3=6 x-y=4 by elimination

Question 822051: how do you work out -5x+3=6 x-y=4 by elimination

Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
PUT EACH EQUATION INTO THE SAME FORM, PREFERABLY STANDARD FORM.
and ,
Assuming you meant:
and ;
these are in the form, .

MULTIPLY ONE OR BOTH EQUATIONS SO THAT THE COEFFICIENT ON ONE OF THE VARIABLES IS THE SAME FOR BOTH EQUATIONS.
and , for the second equation.

SUBTRACT (OR ADD) ONE EQUATION FROM THE OTHER.

SOLVE FOR THE UN-ELIMINATED VARIABLE FIRST, AND THEN USE EITHER EQUATION TO FIND THE OTHER VARIABLE.

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