Question

The cost of a ball pen is 4 less than one third of the cost of a fountain pen . Write this statement in linear equation in two variables.​

Answer 1

$\huge\bf{Answer:-}$

Refer the attachment.

Answer 2

Answer:

$= x = \frac{(1)}{3} \times 1) - 4 \\ 3x - f - 12 \\ 12 - f - 3x \\ f - 3x = 12 \\ be \: brainly$