Question

What is the solution of the equation, 7 + 2x = 0?

(a) \(\frac{2}{7}\)

(b) \(\frac{-2}{7}\)

(c) \(\frac{7}{2}\)

(d) \(\frac{-7}{2}\)

This question was addressed to me in examination.

Question is from Solving Linear Equations with Variables on One Side and Number on the Other in section Linear Equations in One Variable of Mathematics – Class 8

Answer 1

Correct choice is (d) \(\frac{-7}{2}\)

Easy explanation: 7 + 2x = 0

Step 1: Transposing 7 to RHS we get,

2x = -7

Step 2: Dividing both sides by 2 we get,

x = \(\frac{-7}{2}\).