In the following question out of the four options only one is correct- write the correct answer-a x-a-bb x-bc x-b-ad x-b-aThe solution of the equation ax - b - 0 is-

Given equation is ax + b = 0 ⇒ ax + b b = b ⇒ ax= b ⇒ax/a= b/a ∴ x= b/a Hence, the solution of the equation ax+b=0 is x= b/a ...

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Standard VII

Mathematics

Transposing Method

In the follow...

Question

In the following question out of the four options only one is correct, write the correct answer:
(a) $x = \frac{a}{b}$
(b) $x = - b$
(c) $x = \frac{- b}{a}$
(d) $x = \frac{b}{a}$
The solution of the equation ax + b = 0 is:

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Solution

Given equation is ax + b = 0
$\Rightarrow a x + b - b = - b \Rightarrow a x = - b \Rightarrow \frac{a x}{a} = \frac{- b}{a} ∴ x = \frac{- b}{a}$
Hence, the solution of the equation ax+b=0 is x= $- \frac{b}{a}$

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Question 2

In the following question out of the four options only one is correct, write the correct answer:
(a) $x = \frac{a}{b}$
(b) $x = - b$
(c) $x = \frac{- b}{a}$
(d) $x = \frac{b}{a}$
The solution of the equation ax+b=0 is:

Question 7

In the following question out of the four options only one is correct, write the correct answer.

If a and b are positive integers, then the solution of the equation ax=b has to be always:

(a) positive

(b) negative

(d) zero

Question 1

In the following question out of the four options only one is correct, write the correct answer

The solution of which of the following equations is neither a fraction nor an integer?

(a) 3x + 2 = 5x + 2

(b) 4x – 18 = 2

(d) 5x – 8 = x + 4

Question 7

In the following question out of the four options only one is correct, write the correct answer.

If a and b are positive integers, then the solution of the equation ax=b has to be always:

(a) positive

(b) negative

(d) zero

Question 22

In the following question, out of the four options, only one is correct. Write the correct answer:

For a non-zero integer x, $(x^{4})^{- 3}$ is equal to:
(a) $x^{12}$
(b) $x^{- 12}$
(c) $x^{64}$
(d) $x^{- 64}$

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In the following question out of the four options only one is correct, write the correct answer: (a) x=ab (b) x=−b (c) x=−ba (d) x=ba The solution of the equation ax + b = 0 is:

Given equation is ax + b = 0 ⇒ax+b−b=−b⇒ax=−b⇒axa=−ba∴x=−ba Hence, the solution of the equation ax+b=0 is x=−ba

In the following question out of the four options only one is correct, write the correct answer:
(a) $x = \frac{a}{b}$
(b) $x = - b$
(c) $x = \frac{- b}{a}$
(d) $x = \frac{b}{a}$
The solution of the equation ax + b = 0 is:

Given equation is ax + b = 0
$\Rightarrow a x + b - b = - b \Rightarrow a x = - b \Rightarrow \frac{a x}{a} = \frac{- b}{a} ∴ x = \frac{- b}{a}$
Hence, the solution of the equation ax+b=0 is x= $- \frac{b}{a}$