What is the ×-intercept of the equation y=1/2×+6

Where ever the line crosses the x axis so if you go on desmos.com and type the equation in you'll find it really easy. it crosses at (-12,0)

To find the x-int change the equation to standard form Ax+By=C 
y=1/2x+6   subtract 1/2x from both sides. 
-1/2x + y= 6   Multiply both sides by 2 to get rid of the fraction. 
2( -1/2x + y)= 6(2) 
-x + 2y = 12   Plug in 0 for y to find the x-int 
-x + 2(0) = 12
-x = 12     Divide both sides by -1 
x= -12    
The x-int is (-12, 0)