Answer:
x=8
Explanation:
First off, make the equation easier to solve by putting the non-variable numbers to the other side:
-1+0.5x+9.7=12.7
0.5x+9.7-1=12.7
0.5x+8.7=12.7
-8.7 -8.7
0.5x+0=4.0
Then, multiply 0.5x by 2 and 4.0 by 2 getting you the answer of:
1x=8
x=8