Respuesta :

olya98
3x - 9 + 7x - 10 = 9x - 5x + 5

Start off by combining like terms. 

Let's do the left side first:  3x + 7x = 10x  and -9 - 10 = -19
Now do the right side: 9x - 5x - 4x  and 5 is left over.

Your equation now should look like this: 10x - 19 = 4x + 5

Next step: subtract 4x from both sides
10x - 19 = 4x + 5
-4x            -4x

6x - 19 = 5

Now add 19 to both sides.

6x - 19 = 5
     +19   +19

6x = 24

divide 6x and 24 by 6

6x/6 = 24/6

x = 4