Finding the Unknown — Class 7 solved problems
9 problems from this chapter, each solved step by step.
- 5X+7Y = 37. If X = 2 What is Y?
Y = (27)/(7)
- 3X+4Y=36. If X= 2. what is Y?
The value of Y is 7.5.
- हिंदी में जवाब दो: A number is such that when you double it and add 7, you get 33. Form an equation and find the number.
The number is 13.
- The real x for which 2(2x + 3) - 10 < 6 (x - 2) is:
x > 4
- Two angles of a triangle are 50 and 30. What is the third?
The third angle of the triangle is 100^°.
- A class of 200 students is split into 3 groups such that 2 of them are equal in number and the last one (which is the smallest) is 10 less than each of the othe
The number of students in the smallest group is 60.
- Find the missing value of X between 3X +5 equal to 11
The missing value of X is 2.
- 5X+14Y=1679. X=20. What is value of Y?
Y = (1579)/(14) or Y ≈ 112.79
- Find the missing value of X between 5X +5 equal to 11
The missing value of X is (6)/(5).