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प्रश्न
Subtract:
2a − b from 3a − 5b
उत्तर
\[\left( 3a - 5b \right) - \left( 2a - b \right)\]
\[ = \left( 3a - 5b \right) - 2a + b\]
\[ = 3a - 5b - 2a + b\]
\[ = 3a - 2a - 5b + b\]
\[ = a - 4b\]
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