Question 28

The solution of the equation 3x +7 = - 20 is ___ .

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Solution

Answer : - 9

Solution:

Given, $3 x + 7 = - 20$

Subtracting 7 from both sides of the equation, we get

$3 x + 7 - 7 = - 20 - 7$

$\Rightarrow 3 x = - 27$

Dividing both sides of this equation by 3, we get

$\Rightarrow \frac{3 x}{3} = \frac{- 27}{3}$

$\Rightarrow x = - 9$

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Similar questions

Question 28

The solution of the equation 3x +7 = - 20 is ___ .

Question 52

Answer True/False.

$x = 5$ is the solution of the equation $3 x + 2 = 20$ .

Question 7

The solution of the equation 3x + 7 = - 20 is

(a) $\frac{17}{7}$

(b) -9

(d) $\frac{13}{3}$

Question 26

Fill in the blanks to make the statement true.
.................. is the solution of the equation 3x - 2 = 7.

7 + 3 (x + 5) = 31

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