मराठी

Check whether the value given in the bracket is a solution to the given equation or not: n + 5 = 19 (n = 1)

Advertisements
Advertisements

प्रश्न

Check whether the value given in the bracket is a solution to the given equation or not:

n + 5 = 19 (n = 1)

बेरीज
Advertisements

उत्तर

n + 5 = 19 (n = 1)

Putting n = 1 in L.H.S.,

n + 5 = 1 + 5 = 6 ≠ 19

As L.H.S. ≠ R.H.S.,

Therefore, n = 1 is not a solution of the given equation, n + 5 = 19.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Simple Equations - EXERCISE 4.1 [पृष्ठ ६३]

APPEARS IN

एनसीईआरटी Mathematics [English] Class 7
पाठ 4 Simple Equations
EXERCISE 4.1 | Q 2. (a) | पृष्ठ ६३

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Complete the last column of the table.

Equation Value Say, whether the Equation is Satisfied. (Yes/No)
x + 3 = 0 x = -3  

Add 2xy, 5xy, −xy


Solve the following equation by the trial-and-error method: 11 + x = 19


Solve the following equation and verify the answer:

`x/2=x/3+1`


Solve the following equation and verify the answer:

\[\frac{n}{4} - 5 = \frac{n}{6} + \frac{1}{2}\]

The volume of water in a tank is twice of that in the other. If we draw out 25 litres from the first and add it to the other, the volumes of the water in each tank will be the same. Find the volume of water in each tank.


The variable used in the equation 2p + 8 = 18 is ______.


The length of a rectangular hall is 4 meters less than 3 times the breadth of the hall. What is the length, if the breadth is b meters? 


Given n students in the class like football, what may 2n show? What may show? (Hint: Think of games other than football). 


Complete the entries in the third column of the table.

S.No.

Equation

Value of variable

Equation satisfied Yes/No

(a)

10y = 80

y = 10

______

(b)

10y = 80

y = 8

______

(c)

10y = 80

y = 5

______

(d)

4l = 20

l = 20

______

(e)

4l = 20

l = 80

______

(f)

4l = 20

l = 5

______

(g)

b + 5 = 9

b = 5

______

(h)

b + 5 = 9

b = 9

______

(i)

b + 5 = 9

b = 4

______

(j)

h − 8 = 5

h = 13

______

(k)

h − 8 = 5

h = 8

______

(l)

h − 8 = 5

h = 0

______

(m)

p + 3 = 1

p = 3

______

(n)

p + 3 = 1

p = 1

______

(o)

p + 3 = 1

p = 0

______

(p)

p + 3 = 1

p = − 1

______

(q)

p + 3 = 1

p = − 2

______


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×