Question

Solve: 2y – 2 = 7y + 1.

(a) \(\frac{-3}{5}\)

(b) \(\frac{-5}{3}\)

(c) \(\frac{2}{3}\)

(d) \(\frac{3}{2}\)

I had been asked this question during an interview.

This intriguing question originated from Reduce the Linear Equation and Find the Value of the Variable in chapter Linear Equations in One Variable of Mathematics – Class 8

Answer 1

The correct answer is (a) \(\frac{-3}{5}\)

To explain I would say: 2y – 2 = 7y + 1

∴2y – 7y = 1 + 2

∴-5y = 3

∴y = \(\frac{-3}{5}\).