The solution of the equation mx + n = 0 is

1

(a)

\(\frac{-n}{m}\)

(b)

\(\frac{n}{m}\)

(c)

\(\frac{2n}{m}\)

(d)

\(\frac{m}{n}\)

If k + 7 = 16, then the value of 8k - 72 is equal to

1

(a)

0

(b)

1

(c)

112

(d)

56

The equation having -3 as a solution is

1

(a)

x + 3 = 1

(b)

8 + 2x = 3

(c)

10 + 3x = 1

(d)

2x + 1 = 3

Which of the following numbers satisfies the equation -6 + x = -18?

1

(a)

10

(b)

-13

(c)

-12

(d)

-16

x - ________ = 15, when \(\frac{x}{2}=6\)

1

(a)

 -3

Any term of an equation may be transposed from one side of the equation to the other side of the equation by changing the ___________ of term.

1

(a)

sign

If \(x-\frac{1}{2}=\frac{-1}{2}\) then x = _________.

1

(a)

0

If \(x-\frac{7}{8}=\frac{7}{8}\) then \(x=\frac{7}{4}\)

1

(a) False

(b) True

If 2(k + 1) = 19, then the value of 6k - 3 is 32.

1

(a) True

(b) False

One-third of a number when added to itself, gives 10, then it can be represented as \(\frac{x}{3}+10=x\)

1

(a) True

(b) False

Solve the equation 6x- 4= 22.

2

(a)

Check whether the value given in the brackets is a solution to the given equation or not: 7n+5 = 19(n=2)

2

(a)

Write the following equations in statement form.
m - 7 = 3.

2

(a)

Solve the following equation by trial and error method. 5p+2 =17

3

(a)

Set up equation and solve them to find the unknown numbers in the following cases. If I take three-fourths of a number and add 3 to it, I get 21.

3

(a)

Solve the following: Laxmi's father is 49 yr old. He is 4 yr older than three times Laxmi's age. What is Laxmi's age?

3

(a)

The age of Sohan Lal is four times that of his son Amit. If the difference of their ages is 27 yr, find the age of Amit.

5

(a)