Advertisements
Advertisements
Question
Find the value of the following expression, when x = −1:
2x - 7
Sum
Advertisements
Solution
2x - 7 on putting x = -1 in the given equation
= 2 × (-1) - 7
= -2 - 7
= -9
shaalaa.com
Is there an error in this question or solution?
RELATED QUESTIONS
If a = 2, b = −2, find the value of a2 + ab + b2.
Simplify the expression and find the value if x is equal to 2.
6x + 5 (x − 2)
If m = – 7, evaluate:
2m2
If x = 5 and y = 4, evaluate:
3y2
If y = 5 and z = 2, evaluate:
9y2z
If x = 2 and y = 10, evaluate:
5y2
If x = − 6, evaluate:
`"x"^2/2`
If y = − 8, evaluate:
6y + 53
If y = − 8, evaluate:
`"y"^3/4`
What is the value of the expression 7 - 2x when x = -4?
