12 less than 4 times a number is at least 3 more than the number

Write out the equation

12-4x=3+x

Solve for x by passing all x terms to the left and all non x terms to the right

-4x-x=3-12

-5x=-9

Divide both sides by - 5 to isolate x

x=-9/-5

Do the divison in the calculator and get:

x=1.8

Or leave it in fraction form (signs go positive since both were negative)

x=9/5

4x-12> = x+3 that's greater than or equal to. solve for x