Question

Simplify
1) P + 4 = 15
2) 4p – 2 = 18
3) 3m + 4 = 25
4)
3n
5
= 6
5) h
3
=
5
4
6) 20y
3
= 40
7) 7p + 7 = 70
8) 4(2 – x) = 8
9) 0 = 16 + 4(m – 6)
10) 7m + 19
2
= 13
II. Write the equation for
1) Three times y subtracted from 7
2) If you add one to one third of m you get 23
3) Sachin scored twice as many runs as Rahul. Together their runs fell
five short of a double century. How many runs did each one score?
4) Laxmi is 9 years younger than two times Laxmi’s aunt age. What is
Laxmi’s age?
5) In an isosceles triangle the vertex angle is thrice either of base
angle. Let base angle be b in degrees

III. CASE STUDY QUESTION
Math teacher has given test results of the students in various forms of
equations.
(Rahul, Venkat, Harish, Jaswanth, Krishna are the students)

1. Rahul’s score is _________.
(a) 100 (b) 90 (c) 80 (d) 70
2. Venkat’s marks in maths _______________.
(a) 96 (b) 98 (c) 100 (d) 94
3. Jaswanth’s math test marks _________.
(a) 88 (b) 77 (c) 66 (d) 91
4. Harish math test marks _________.
(a) 20 (b) 30 (c) 40 (d) 50
5. Math test marks for Krishna _________.
(a) 55 (b) 45 (c) 65 (d) 35

Answer 1

Answer:

1) p=11

2) p=5

3) m=7

4) n= 2/5

5) h = 18

6) y = 2/3

7) p = 9

8) x = 0

9) m = 2

10) m= -179/7

I hope this can help