Question

4+3x=31-6x error method ​

Answer 1

Answer:

$4 + 3x = 31 - 6x \\ \\ = > 3x + 6x = 31 - 4 \\ \\ = > 9x = 27 \\ \\ = > x = \frac{27}{9} \\ \\ = > x = 3$

$\huge\underline\bold {Note:}$

Adding and multiplying combinations of positive and negative integers can cause confusion.

So, always keep in mind that :

Two ‘pluses’ make a ‘plus’. Two ‘minus’ make a ‘minus’. And a plus and a minus make a minus.

Answer 2

Answer:

4+3x=31−6x

=>3x+6x=31−4

=>9x=27

=>x=

9

27

=>x=3