English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

When y = –1, the value of the expression 2y – 1 is 3 - Mathematics

Advertisements
Advertisements

Question

When y = –1, the value of the expression 2y – 1 is 3

Options

  • True

  • False

MCQ
True or False
Advertisements

Solution

When y = –1, the value of the expression 2y – 1 is 3 - False

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Algebra - Exercise 3.1 [Page 58]

APPEARS IN

Samacheer Kalvi Mathematics - Term 1 [English] Class 7 TN Board
Chapter 3 Algebra
Exercise 3.1 | Q 2. (iv) | Page 58

RELATED QUESTIONS

Factorize 4( x - y)2  -12( x - y)( x + y ) + 9(x + y )2


Factorize `x^2 + 2sqrt3x - 24`


Factorize `2x^2 - 5/6x + 1/12`


Factorize the following expressions:

8a3 - b3 - 4ax + 2bx


If x2 + y2 = 29 and xy = 2, find the value of x - y.


What must be added to the following expression to make it a whole square? 

4x2 − 20x + 20


Write the value of \[\left( \frac{1}{2} \right)^3 + \left( \frac{1}{3} \right)^3 - \left( \frac{5}{6} \right)^3 .\]


Divide: 8x + 24 by 4


Divide: 4a2 - a by - a 


Divide: 6x2 + 5x - 6 by 2x + 3


Divide: 9x2 - 24xy + 16y2 by 3x- 4y 


Divide: 6x3 + 5x2 − 21x + 10 by 3x − 2 


The area of a rectangle is 6x2 – 4xy – 10y2 square unit and its length is 2x + 2y unit. Find its breadth.


Divide: x5 - 15x4 - 10x2 by -5x2 


Write in the form of an algebraic expression:

Surface area of a cube is six times the square of its edge.


Express the following as an algebraic expression:

The product of 12, x, y and z minus the product of 5, m and n.


The constant term of the expression 2y – 6 is _________


Which of the following is correct?


Sonu and Raj have to collect different kinds of leaves for science project. They go to a park where Sonu collects 12 leaves and Raj collects x leaves. After some time Sonu loses 3 leaves and Raj collects 2x leaves. Write an algebraic expression to find the total number of leaves collected by both of them.


In the given figure, the length of a green side is given by g and that of the red side is given by p.


Write an expression for the following pattern. Also write an expression if 100 such shapes are joined together.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×