Giải hộ mình câu này với các bạn

Bài 1)

1) $\displaystyle 13+( x-6) =15$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
13+x-6=15\\
x=15+6-13\\
x=8
\end{array}$

2) $\displaystyle 25+( -2+x) =5$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
25-2+x=5\\
x=5+2-25\\
x=-18
\end{array}$

3) $\displaystyle 30+( 32-x) =10$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
30+32-x=10\\
62-x=10\\
x=62-10\\
x=52
\end{array}$

4) $\displaystyle -30+( 25-x) =-1$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
-30+25-x=-1\\
x=-30+25+1\\
x=-4
\end{array}$

5) $\displaystyle 5-( 4-x) =6$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
5-4+x=6\\
x=6+4-5\\
x=5
\end{array}$

6) $\displaystyle -26-( x-7) =0$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
-26-x+7=0\\
x=-26+7\\
x=-19
\end{array}$

7) $\displaystyle 24-( 30+x) =-7$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
24-30-x=-7\\
x=24-30+7\\
x=1
\end{array}$

8) $\displaystyle 3-( 17-x) =-12$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
3-17+x=-12\\
x=-12-3+17\\
x=2
\end{array}$

9) $\displaystyle ( 5-x) -7=-15$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
5-x=-8\\
x=5+8\\
x=13
\end{array}$

10) $\displaystyle 517-( x-124) =-483$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
517-x+124=-483\\
x=517+124+483\\
x=1124
\end{array}$

11) $\displaystyle 117-( x+5) =26+( -9)$

$\displaystyle  \begin{array}{{>{\displaystyle}l}}
117-x-5=17\\
x=117-5-17\\
x=95
\end{array}$