NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 4: Simple Equations - Multiple Choice Questions
Question 7

Question.  7

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

(a)

\(\dfrac{17}{7}\)

(b)

-9

(c)

9

(d)

\(\dfrac{13}{3}\)

Detailed Answer with Explanation:

\(3x + 7 = -20 \implies 3x = -27 \implies x = -9\).