Practice Problems

Solve the system of equations.

  1. $$3x-4y = 8$$

    $$8x-5y=10$$

  2. $$9x-4y = -7$$

    $$7x-12y=39 $$

  3. $$-2x-7y = 30$$

    $$7x+4y=18$$

  4. $$-5y+4x = 49$$

    $$7y+2x=-23$$

Source: Khan Academy, https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:systems-of-equations/x2f8bb11595b61c86:equivalent-systems-of-equations-and-the-elimination-method/e/systems_of_equations_with_elimination
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