Hey there, first we simplify, 7g-12=7/3G+3, second, we subtract 7/3G from both sides, 7g-12-7/3g=7/3G+3-7/3g=14/3g-12=3, third, we add 12 to both sides, 14/3g-12+12=3+12=14/3g=15, now, we multiply both sides by 3/14, 3/14*14/3g=3/14*15=g=45/14. Therefore, the answer is g=45/14
