$\"\"$

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The equations of linear system are $\"\"$ .

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Rewrite the equation 2: $\"\"$ so that the like terms are arranged in column.

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Subtract 2.7x from each side.

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$\"\"$

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$\"\"$

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$\"\"$ . $\"\"$

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Since the coefficient of the x - terms in the above two equations $\"\"$ are additive inverse, eliminate these terms by adding the equations.

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Write the equations in column form and add 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 5.

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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 1: $\"\"$ and solve for x.

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$\"\"$

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$\"\"$

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Subtract 9 from each side.

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$\"\"$

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$\"\"$

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Divide each side by 2.7.

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$\"\"$

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Cancel common terms.

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$\"\"$ . $\"\"$

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The solution is $\"\"$ .