first degree equation

x + 3 = -5 find x

3 - x = 9 find x

 $\sqrt{x\ }\ =\ 25\ \ then\ x\ =\$  

• 5

•  $\pm\ 625$  

•  $\pm\ 5$  

• 625

2 x - 7 = - 15 + x

3 ( 2 - L) = - 3 then L =