For this case we have the following equation:
[tex](x-4) - (x + 7) = 8x[/tex]
We have to:
[tex]- * + = -[/tex]
So, rewriting the expression we have:
[tex]x-4-x-7 = 8x[/tex]
We add similar terms from the left side:
Equal signs are added and the same sign is placed.
Different signs are subtracted and the major sign is placed.
[tex]-11 = 8x[/tex]
We divide between 8 on both sides:
So:
[tex]x = - \frac {11} {8}[/tex]
ANswer:
[tex]x = - \frac {11} {8}[/tex]
