Answer:
x = 9
Explanation:
Apparently, you want the solution to (10x -27) = 7x.
Solution
Subtract 7x from both sides to get ...
3x -27 = 0
Divide by 3, and you have ...
x -9 = 0
Add 9 to show the value of x:
x = 9
The solution to the given equation is x=9.
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Additional comment
There is no information here that relates the given equation to b, so we cannot help you find b.