Make the sum and difference of algebraic expressions — task. Maths CBSE Homework Assignments, Class 7.

What will be the difference of

x + 3 y + z

from

30 x + 20 y + 5 z

and sum of

3 x + 18 y + 21

Insert the answer without spaces between the variables!

Answer:

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1. Make the sum and difference of algebraic expressions