$\"\"$ $\"\"$ $\"\"$

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The equation is $\"\"$

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According to Multiplication Property of equality: If $\"\"$ then, $\"\"$ .

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$\"\"$ (Multiply each side by 11)

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$\"\"$ (Cancel the common terms)

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$\"\"$

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$\"\"$

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According to subtraction Property of equality: If $\"\"$ then, $\"\"$ .

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$\"\"$ (subtract x to each side)

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$\"\"$ (Additive inverse property: $\"\"$ )

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$\"\"$ (Additive identity proparty: $\"\"$

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$\"\"$ (Divide each side by 10)

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$\"\"$ (Cancel common terms) $\"\"$

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Verify:

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To check the solution, substitute $\"\"$ in original equation.

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$\"\"$

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$\"\"$ (Cancel the common terms)

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$\"\"$ (Additive inverse property: $\"\"$ )

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$\"\"$ (Additive identity proparty: $\"\"$

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$\"\"$ (Cancel the common terms)

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Compare the values, the equation is true.

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$\"\"$

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The value of a is $\"\"$ .

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