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

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Given equation is $\"\"$ .

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According to addition property of equality: if $\"\"$ , then $\"\"$ .

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$\"\"$ (Add m to each side)

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

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$\"\"$ (Add gh to each side) \ \

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$\"\"$ (Commutative property of addition: $\"\"$ )

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

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$\"\"$ (Distributive property: $\"\"$ )

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$\"\"$ (Divide each side by 2 + h)

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

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The solution is $\"\"$ .