Question

ADDITION & SUBTRACTION OF ALGEBRAIC EXPRESSION

I. Find the sum of the following:-1


. 19xy, 2yx , -5xy

2. a+8b-c, 7a-2c+7

3. 7pqr – 5pq, 5pqr – 7pq

4.m+n, 2m-n, m-n, 2m+2n, 2n


II. Subtract the following:-

1. 7pq from 16pq

2. 4a+2b from 8a-2b+5c

3. 3x+7y from 7x+3y

4. 9m -2n from 10m +2m =8

III. Simplify the following:-

1.(a+b+c) + (3a+2b-5c) – (7a-6b+2c)


2. x-x+y+(y+2)-(x-5)+10-(15+x)​

Answer 1

Answer:

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Answer 2

Answer:

1. 16xy
2. 8a+8b-3c+7

Step-by-step explanation:

1. 19xy + 2xy + (-5xy)

= 19xy+2xy-5xy

= 16xy

2. a +8b-c. +7a-2c+7= 8a+8b -3c+7