Advertisements
Advertisements
Question
Subtract:
4x − 6y + 3z from 12x + 7y − 21z.
Sum
Advertisements
Solution
(12x + 7y − 21z) − (4x − 6y + 3z)
= 12x + 7y − 21z − 4x + 6y − 3z
= 12x − 4x + 7y + 6y − 21z − 3z
= 8x + 13y − 24z
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Find the sum of 2x2 + xy − y2, − x2 + 2xy + 3y2 and 3x2 − 10xy + 4y2.
Evaluate:
(8a + 15b) − (3b − 7a)
Evaluate:
(6y − 13) − (4 − 7y)
Take `(-3)/2"p"+"q"-"r"` from `1/2"p"-1/3"q"-3/2"r".`
By how much should x + 2y – 3z be increased to get 3x?
The sum of two expressions is 5x2 – 3y2. If one of them is 3x2 + 4xy – y2, find the other.
The sum of two expressions is 3a2 + 2ab – b2. If one of them is 2a2 + 3b2, find the other.
Fill in the blank:
3ab × 6ax = ..................
Fill in the blank:
6 × 6x2 × 6x2y2 = ...................
Fill in the blank:
− 5 × − 3x × 5x2 = ..................
