Algebra

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Solve by the elimination method
2r-5s=1
5r+2s=46

The solution is _______, or there are infinitely many solutions, or there is no solution

  • Algebra -

    4r - 10s = 2 (multiplied by 2)
    25r +10s = 230 (multiplied by 5)

    Add the two equations.

    29r = 232

    r = 8

  • Algebra -

    which of these is an easy way to solve the following system using the sustitution method:-3x+4y=11 and x+6y=0

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