\"\"

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The equations of linear system are \"\".

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Here only two equations are used to find the two variables.

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The two equations are \"\".

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Since the coefficient of the x - term in the above two equations is same, eliminate these terms by subtracting the equations.

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Write the equations in column form and subtract to eliminate variable x.

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\"\".\"\"

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The resultant equation is \"\" and solve it for y.

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Divide each side by 9.

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\"\"

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Cancel common terms.

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\"\".\"\"

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Substitute the value of \"\" in equation 2: \"\" and solve for x.

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\"\"

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\"\"

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Add 18 to each side.

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\"\"

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\"\".\"\"

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The solution is \"\".