to solve this first you need to do distributive property, so 2/3(9×-12)=8+2x will now become 6x-12=8+2x because 9 times 2/3 is 18/3 and if you simplify that it will equal to 6, now your new equation will be 6×-12=8+2×. Now you add 12 from both sides and your new equation will be 6x=20+2×,After that you subtract 2x from both sides and your new equation will be 4x=20 and then the last and final thing you do is just divide 20 by 4 and your final answer will be x=5 or 5, hope this helped
