Advertisements
Advertisements
Question
Find the expression to be added with 5a – 3b – 2c to get a – 4b – 2c?
Advertisements
Solution
To get the required expression we must subtract 5a – 3b + 2c from a – 4b – 2c.
∴ a – 4b – 2c – (5a – 3b + 2c)
= a – 4b – 2c + (– 5a + 3b – 2c)
= a – 4b – 2c – 5a + 3b – 2c
= (1 – 5)a + (– 4 + 3)b + (– 2 – 2)c
= – 4a – b – 4c
∴ – 4a – b – 4c must be added.
APPEARS IN
RELATED QUESTIONS
Subtract: 4a − 7ab + 3b + 12 from 12a − 9ab + 5b − 3
Subtract: 6xy from − 12xy
If \[x + \frac{1}{x} = 20,\]find the value of \[x^2 + \frac{1}{x^2} .\].
If \[x - \frac{1}{x} = 3,\] find the values of \[x^2 + \frac{1}{x^2}\] and \[x^4 + \frac{1}{x^4} .\]
Find the sum of the following expressions
7p + 6q, 5p – q, q + 16p
Add: 2a + b + 3c and `"a" + 1/3"b" + 2/5"c"`
The sum of –7pq and 2pq is ______.
The expression 13 + 90 is a ______.
Sum of x and y is x + y.
Each symbol given below represents an algebraic expression:
= 2x2 + 3y, 
= 5x2 + 3x, 
= 8y2 – 3x2 + 2x + 3y
The symbols are then represented in the expression:
Find the expression which is represented by the above symbols.
