The decimal representation of any number is a linear combination of powers of 10. In other words, given a number like 123.456, we can expand it as

for any
, so the above is the same as

Similarly, we can write

Now it's a question of reducing the fraction as much as possible. We have
so

Answer:
-160x+264
Step-by-step explanation:
-48+96x-112x+168
-160+264
Z - 7 = 8
subtract 7 from both sides
z = 15
hope this helped!