Question

What's the answer to 1\2x+3=9

Answer 1

1/2 x + 3 = 9 /*2
x+6=18
x=18-6
x=12

Answer 2

$\frac{1}{2}x+3=9/-3\\\\\frac{1}{2}x=6/:\frac{1}{2}\\\\x=12$
The answer is 12.

I hope I helped :D