Answer:
1/4
Step-by-step explanation:
First u subtract both sides by 9
12x + 9-9= 4x + 7-9 = 12x = 4x + 2
Then u subtract
12x= 4x - 2
12x - 4x =4x - 2 - 4x=
and this will get u 1/8 but then u simplify and get 1/4
