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The system of equations are equations are $\"\"$ , $\"\"$

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and $\"\"$ .

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Eliminate one variable by using two pairs of equations.

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Multiply the equation $\"\"$ by $\"\"$ .

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$\"\"$

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Subtract the equation $\"\"$ from $\"\"$ .

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$\"\"$

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Subtract the equation $\"\"$ from $\"\"$ .

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$\"\"$

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Divide each side by $\"\"$ .

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$\"\"$

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Solve the system of two equations.

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Add the equations $\"\"$ and $\"\"$ .

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$\"\"$

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Solve for $\"\"$ .

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$\"\"$ .

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Substitute $\"\"$ in equation $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ .

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Substitute the two values into one of the original equations to find $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in equation $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$ .

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$\"\"$ .