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प्रश्न
Simplify:
5 (x + 3y) – 2 (3x – 4y)
योग
उत्तर
5 (x + 3y) – 2 (3x – 4y)
= 5x + 15y – 6x + 8y
= 5x – 6x + 15y + 8y
= – x + 23y
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