Advertisements
Advertisements
Question
How much smaller is 15x – 18y + 19z than 22x – 20y – 13z + 26 ?
Sum
Solution
The required result is
(22x – 20y – 13z + 26) – (15x – 18y + 19z)
= 22x – 20y – 13z + 26 – 15x + 18y – 19z
= 7x – 2y – 32z + 26
shaalaa.com
Combining like Terms
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Add : 5a + 3b, a − 2b, 3a + 5b
Add : 13ab − 9cd − xy, 5xy, 15cd − 7ab, 6xy − 3cd
Subtract : 6a + 3 from a3 − 3a2 + 4a + 1
Subtract : a2 + ab + b2 from 4a2 − 3ab + 2b2
Subtract the sum of 5y2 + y – 3 and y2 – 3y + 7 from 6y2 + y – 2.
What must be added to x4 – x3 + x2 + x + 3 to obtain x4 + x2 – 1 ?
How much less 2a2 + 1 is than 3a2 – 6 ?
If x = 6a + 8b + 9c ; y = 2b – 3a – 6c and z = c – b + 3a ; find :
- x + y + z
- x – y + z
- 2x – y – 3z
- 3y – 2z – 5x
The two adjacent sides of a rectangle are 2x2 – 5xy + 3z2 and 4xy – x2 – z2. Find its perimeter.
How much bigger is 5x2y2 – 18xy2 – 10x2y than –5x2 + 6x2y – 7xy?
