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Sagot :

Answer:

2x + 7y and 7g + 3h

Step-by-step explanation:

(a)

3x + 5y - x + 2y ← collect like terms

= (3x - x) + (5y + 2y)

= 2x + 7y

(b)

3g + 5h + 4g - 2h ← collect like terms

= (3g + 4g) + (5h - 2h)

= 7g + 3h

Answer:

A) 2x + 7y

B) 7g + 3h

Step-by-step explanation:

A)   3x + 5y - x +2y =  

      3x - x = 2x

      5y + 2y = 7y                ans:   2x + 7y

B)   3g + 5h +4g - 2h =

     3g + 4g = 7g

     5h - 2h  = 3h                ans:   7g + 3h

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