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प्रश्न
Simplify:
`3"x"+(2"x"-overline("x"+2))`
योग
उत्तर
`3"x"+(2"x"-overline("x"+2))`
= 3x + (2x − x − 2)
= 3x + 2x − x − 2
= 4x − 2
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Concept of Substitution
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