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algebra

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6x-y=-4
2x+2y=15
Solve for y

  • algebra -

    Multiply top equation by 2.

    12x-2y = -8
    2x+2y=15

    Add the two equations.

    14x = 7

    Solve for x, then insert value into one equation to find y. Check by inserting value of x into the other equation.

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