Substitution and elimination to solve linear equation

Reference no: EM13123980

Please solve the following system of equations using both of these methods (solve once using substitution and once using elimination):

-4x+9y=-71; 3x-y=13 and -2x+3y=9; -4x+6y=18

Also, can you show you work so I can understand.

Reference no: EM13123980

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