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  1. S

    linear combinations to solve linear system?

    2x+y=4 x-y=2
  2. S

    confused on linear systems by substitution?

    I dont understand how you would plug the 2 equations in Use the substitution methods to solve the linear system: -x+3y=24 5x+8y=-5
  3. S

    dodge charger or mazda 3?

    which one is better in terms of maintenance cost?? new car suggestions are welcome..
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