Question

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Answer 1

1 ) ( 3x + 2y ) - ( 2x - 3y )

= 3x + 2y - 2x + 3y

= 3x - 2x + 2y + 3y

= x + 5y

2 ) 5b−4c+a+2c−3b−4a=−2c+2b−3a

= a+2b−3c+2c−3b−4a=−3s−b−c

= (−2c+2b−3s)−(−3a−b−c)

= −2c+2b−3a+3a+b+c

= 3b−c

3 ) Age of oldest teachers=54 yerars

= Age of youngest teachers = 23 years

= ∴ Range = (54-23) years =31 years

Answer 2

Step-by-step explanation:

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