For this case we have the following equation:
[tex]2x + 5 = -x + (- 1)[/tex]
Below are the correct steps to solve:
We eliminate the parenthesis taking into account that [tex]+ * - = -[/tex]
[tex]2x + 5 = -x-1[/tex]
We add "x" to both sides of the equation:
[tex]2x + x + 5 = -x + x-1\\3x + 5 = -1[/tex]
We subtract 5 from both sides of the equation:
[tex]3x + 5-5 = -1-5\\3x = -6[/tex]
We divide by 3 on both sides of the equation:
[tex]x = \frac {-6} {3}\\x = -2[/tex]
ANswer:
[tex]x = -2[/tex]
