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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