English

3x − 7 > X + 1 - Mathematics

Advertisements
Advertisements

Question

3x − 7 > x + 1 

Solution

\[3x - 7 > x + 1\]
\[ \Rightarrow 3x - x > 1 + 7 \left( \text{ Transposing x to LHS and - 7 to RHS } \right)\]
\[ \Rightarrow 2x > 8\]
\[ \Rightarrow x > 4 \left( \text{ Dividing both sides by 2 } \right)\]
\[\text{ Hence, the solution set of the given inequation is } \left( 4, \infty \right)\]

shaalaa.com
  Is there an error in this question or solution?
Chapter 15: Linear Inequations - Exercise 15.1 [Page 10]

APPEARS IN

RD Sharma Mathematics [English] Class 11
Chapter 15 Linear Inequations
Exercise 15.1 | Q 4 | Page 10

RELATED QUESTIONS

Solve: 12x < 50, when  x ∈ Z 


\[2\left( 3 - x \right) \geq \frac{x}{5} + 4\]


−(x − 3) + 4 < 5 − 2x


\[\frac{5x}{2} + \frac{3x}{4} \geq \frac{39}{4}\]


\[\frac{2x + 3}{4} - 3 < \frac{x - 4}{3} - 2\]


\[\frac{6x - 5}{4x + 1} < 0\]


\[\frac{1}{x - 1} \leq 2\]


Solve each of the following system of equations in R.

x − 2 > 0, 3x < 18 


2x + 6 ≥ 0, 4x − 7 < 0 


Solve each of the following system of equations in R. 

3x − 6 > 0, 2x − 5 > 0 


Solve each of the following system of equations in R.

11 − 5x > −4, 4x + 13 ≤ −11 


Solve each of the following system of equations in R. 

 4x − 1 ≤ 0, 3 − 4x < 0 


Solve each of the following system of equations in R. 

2 (x − 6) < 3x − 7, 11 − 2x < 6 − 


Solve the following system of equation in R. 

\[\frac{2x + 1}{7x - 1} > 5, \frac{x + 7}{x - 8} > 2\] 


Solve each of the following system of equations in R. \[\frac{4}{x + 1} \leq 3 \leq \frac{6}{x + 1}, x > 0\]


Mark the correct alternative in each of the following:
Given that xy and are real numbers and x\[<\]yb\[>\]0, then

 


Mark the correct alternative in each of the following:

\[\left| x - 1 \right|\]\[>\]5, then 


Mark the correct alternative in each of the following:
The solution set of the inequation \[\left| x + 2 \right|\]\[\leq\]5 is 


Solve `(x - 2)/(x + 5) > 2`.


Solve |3 – 4x| ≥ 9.


Solve 1 ≤ |x – 2| ≤ 3.


Solve for x, `(|x + 3| + x)/(x + 2) > 1`.


If –x ≤ –4, then 2x ______ 8.


If `1/(x - 2) < 0`, then x ______ 2.


If |3x – 7| > 2, then x ______ `5/3` or x ______ 3.


If p > 0 and q < 0, then p + q ______ p.


Solve for x, the inequality given below.

`(|x - 2| - 1)/(|x - 2| - 2) ≤ 0`


A company manufactures cassettes. Its cost and revenue functions are C(x) = 26,000 + 30x and R(x) = 43x, respectively, where x is the number of cassettes produced and sold in a week. How many cassettes must be sold by the company to realise some profit?


The longest side of a triangle is twice the shortest side and the third side is 2cm longer than the shortest side. If the perimeter of the triangle is more than 166 cm then find the minimum length of the shortest side.


If x < 5, then ______.


If –3x + 17 < –13, then ______.


If |x + 2| ≤ 9, then ______.


If – 4x ≥ 12, then x ______ – 3.


If `2/(x + 2) > 0`, then x  ______ –2.


If x > y and z < 0, then – xz ______ – yz.


If p > 0 and q < 0, then p – q ______ p.


If – 2x + 1 ≥ 9, then x ______ – 4.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×