Question

3x – 9 = 8x + 4, what is x

Answer 1

x = -13/5

Step-by-step explanation:

3x - 9 = 8x + 4

3x -8x = 9 + 4

-5x = 13

x = -13/5

Answer 2

Answer:

=> Hence, the value of x is $-\frac{13}{5} .$

Step-by-step explanation:

In context to questions asked

We have to find the value of x,

Here we will use the transposition method.

The given expression,

$3x -9 = 8x + 4$

Now, add both sides by $9$,

=> $3x -9+9 = 8x + 4+9$

=> $3x= 8x + 4+9$

Add the numbers, we get

=> $3x= 8x + 13$

Subtract both sides by $8x$,

=> $3x-8x= 8x + 13-8x$

=> $-5x = 13$

Divide both sides by $-5$,

=> $x = - \frac{13}{5}$