ML Aggarwal Class 7 Solutions for ICSE Maths Chapter 9 Linear Equations and Inequalities Check Your Progress
Solve the following equations :
(i) 2 (x – 5) + 3 (x – 2) = 8 + 7 (x – 4)
A number exceeds its three-fifth by 22. Find the number.
When 9 is added to twice a number, the result is 3 more than thrice the number. Find the number.
The ten’s digit of a two digit number is twice the unit’s digit. The sum of the number and its unit’s digit is 66. Find the number.
A student bought some pens at ₹ 8 each and some pencils at ₹ 1.50 each. If the total number of pens and pencils purchased is 16 and their total cost is ₹ 50, how many pens did he buy?
Arvind is eight years older than his sister. In three years, he will be twice as old as his sister. How old are they now?
The angles of a triangle are in the ratio 1 : 2 : 3. Find their measure in degrees.
Solve the following inequations and represent their solution on a number line: