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20-07-2021
Mathematics

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xyz-4 xy+5 from 5 from 5xyz+xy+3yz_4

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mariagraxiabanawan14 mariagraxiabanawan14

20-07-2021

Answer

Page No 7.13:

Question 1:

Add the following:

(i) 3x and 7x

(ii) −5xy and 9xy

ANSWER:

We have

(i) 3x + 7x = (3 + 7)x = 10x

(ii) -5xy + 9xy = ( -5 + 9)xy = 4xy

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