Question

0.9 x = 11.7

Answer 1

So x = 11.7/0.9 = 117/9 [Multiply numerator and denominator by 10]
117/9 = 13!! :D
Understood? :)

Answer 2

Divide 11.7 bye 0.9 and u will get x

Answer 3

by* and when you check you answer multiply what you got for x by 0.9 and see if it equals 11.7

Answer 4

0.9X=11.7
X=11.7/.09
X=117/9(10)
X=13(1/10)
X=1.3