Lets suppose
the number=x
the question can be written as:
10(x+14)=9(x)
expanding
10x+140=9x
shifting 10x
140=10x-9x
so
x=140
the number=x
the question can be written as:
10(x+14)=9(x)
expanding
10x+140=9x
shifting 10x
140=10x-9x
so
x=140