Answer:
x=2
Step-by-step explanation:
on the LHS multiply the 6 by the values in the brackets and add by 2x= 9-(x+6) RHS
for the RHS multiply the - by (x+6) which will be 9-x-6
therefore you'll put in your like terms towards the end it'll be 6x-12=0 then take it to the other side and divide by 6 which will give you 2
