Advertisements
Advertisements
Question
Simplify this expression and find its value if x = 3, a = −1, b = −2.
10 - 3b - 4 - 5b
Sum
Advertisements
Solution
10 - 3b - 4 - 5b on putting b = -2 in the given equation
= 10 - 4 - 3b - 5b
= 6 - 8b
= 6 - 8 × (-2)
= 6 + 16
= 22
shaalaa.com
Is there an error in this question or solution?
Chapter 10: Algebraic Expressions - EXERCISE 10.2 [Page 169]
APPEARS IN
RELATED QUESTIONS
Find the value of the following expression, when x = −1:
2x - 7
If a = 2, b = −2, find the value of a2 + b2.
When a = 0, b = −1, find the value of the given expression:
a2 + ab + 2
Simplify the expression and find the value if x is equal to 2.
6x + 5 (x − 2)
Simplify the expression and find the value if x is equal to 2:
4 (2x - 1) + 3x + 11
What should be the value of a if the value of 2x2 + x − a equals to 5, when x = 0?
If m – 6, evaluate:
2m2 + 3m
If a = – 10, evaluate:
a3
If x = – 6, evaluate:
4x2
If y = 5 and z = 2, evaluate:
5y2
