Answer:
B. 16 1/2
Step-by-step explanation:
1/2x+3/4=9
multiply both sides by 4
4(1/2x+3/4)=9x4
2x+3=36
2x=36-3
2x=33
x=33/2
x=16 1/2
2.1
you start with 12x+34=9 so do inverse operations
12x+34=9
-34 -34
12x=-25
12x/12=-25/12
x=-2.083333ect.
or 2.1
