$\"\"$

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The equation is $\"\"$

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According to subtraction property of equality; if a = b, then $\"\"$ .

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$\"\"$ (Subtract 5 from each sides).

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

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$\"\"$ (Subtract: $\"\"$ )

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$\"\"$

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$\"\"$ (Multiply each side by - 3)

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$\"\"$ (Cancel common terms)

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$

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Check:

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

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$\"\"$

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$\"\"$ (Divide: $\"\"$ )

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7 = 7 (Add: $\"\"$ )

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Compare the values, the equation is true. The solution is $\"\"$ .

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$\"\"$

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The value of $\"\"$ .

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