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Subtraction of Algebraic Expressions

1 Subtract th...

Question

(1) Subtract the sum of 3a and 4a from 9a

(2) Subtract (−5xy + 9yz) from (3xy − 4yz)

(3) Subtract (7m² − 2m) from (−4m − 7m²)

(4) Subtract (6a − 4b + c) from (−a + 3b − 5c)

(5) Subtract (−4x − 8y + 7) from (3y − 7x + 1)

(6) How much should be added to (5x − 3y) to get (3x − 5y)?

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Solution

(1)

(2)

(3)

(4)

(5)

(6)

Thus, should be added to to get.

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Similar questions

4 x + y + 2

from the sum of

3 x - 2 y + 7

5 x - 3 y - 8

.

Q. Write each of the following statements by using appropriate grouping symbols:
(i) The sum of a − b and 3a − 2b + 5 is subtracted from 4a + 2b − 7.
(ii) Three times the sum of 2x + y − {5 − (x − 3y)} and 7x − 4y + 3 is subtracted from 3x − 4y + 7.
(iii) The subtraction of x² − y² + 4xy from 2x² + y² − 3xy is added to 9x² − 3y² − xy.

(x^{2} - 2 x y + 3 y^{2})

(4 x^{2} - 5 x y + 8 y^{2})

(a) Subtract 4a − 7ab + 3b + 12 from 12a − 9ab + 5b − 3

(b) Subtract 3xy + 5yz − 7zx from 5xy − 2yz − 2zx + 10xyz

(c) Subtract 4p²q − 3pq + 5pq² − 8p + 7q − 10 from 18 − 3p − 11q + 5pq − 2pq² + 5p²q

Q. From the sum of

3 y^{2} - 5 x^{2} - 3 y x

3 x^{2} - 3 y^{2} + 4 x y - 1

subtract the sum of

11 x^{2} - 2 y^{2} - 3 x y .

Write the expression one below the corner for adding and subtracting.

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