Question

equation
3
2
Exercise 9.5
1. State which of the following are equations with a variable. In case of an
with a variable, identify the variable.
(iii) (y-7) > 5
(1) 17 + x = 5
(ii) 2b - 3 = 7
(iv) = 3
(vi) 5 x 4 - 8 = 3t
(v) 7 3 - 19 = 2
(vii) 2p < 15 (viii) 7 = 11 x 5 - 12 x 4
(ix) 59 = 5.
2. Solve each of the following linear equations:
(i) x + 6=8
(ii) x - 2 = – 5 (iii) 4x = 6
(iv) = 5
(v) 2y - 3 = 2 (vi) 5y + 2 = 4.
3. Solve the following linear equations:
(1) 5(x + 1) = 25
3x - 1
(ii) 2(3x - 1) = 10 (iii)
= 11.
4. Solve the following linear equations:
(i) 5x - 6 = 12 - x (ii) - + 1 = 4-n
(ii)
(iii) 5p + 7 = 19 - 2p
2
4
12
3
2
5
x
- X
5 =
2.
= 11 + y.
2
4
(iv) 2r +
Зу
(v) -5= -4
(vi) 18 -
3
3
5. Solve the following linear equations and verify your answers:
(i) 3 (x + 7) = 18
(ii) 2 (x - 1) = x + 2
(iii) 3x - 11
+ 5
= 2(x-
+
2.
(il 4​

Answer 1

Answer:

I am So Sorry Bro or Sis.

Step-by-step explanation:

Volume of pit = Volume of soil on land

⇒π(

2

7

)

2

=22×14×h

so, h=

7

22

×

2

7

×

2

7

×20×

22

1

×

14

1

h=

2

5

=2.5m

Hence, the answer is 2.5m.