Can anyone help me with this? is equations of lines.

Answer:
x=16
Step-by-step explanation:
y = 1/2 x -3
Let y =5
5 = 1/2 x -3
Add 3 to each side
5+3 = 1/2 x -3+3
8 = 1/2x
Multiply each side by 2
8*2 = 1/2x*2
16 =x
Answer: 16
Step-by-step explanation:
[tex].\quad y=\dfrac{1}{2}x - 3\\\\\\.\quad 5=\dfrac{1}{2}x - 3\\\\.\ \underline{+3}=\underline{\ \ \quad +3}\\\\.\quad 8 =\dfrac{1}{2}x\\\\(2) 8 =(2)\dfrac{1}{2}x\\\\.\quad 16 = x[/tex]