To solve : $\"\"$ -------->(1)

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Subtract $\"\"$ from each side

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$\"\"$

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Group like terms

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$\"\"$

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Add 7 to each side \ \

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$\"\"$

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Group like terms

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$\"\"$

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Divide each side by 4

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$\"\"$

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Cancel common terms

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$\"\"$

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The solution is $\"\"$ .

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Check : \ \

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Let $\"\"$

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Substitute the value $\"\"$ in (1)

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$\"\"$

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$\"\"$

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$\"\"$ .

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So,the above statement is true.

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