Answer:
4/3
Step-by-step explanation:
The equation should be multiplied by the reciprocal (multiplicative inverse) of the coefficient of x:
1/(3/4) = 4/3
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The product of any number and its multiplicative inverse is 1, the multiplicative identity element. 1 times x is x, so the equation becomes ...
(4/3)(3/4)x = (4/3)(9) . . . . multiply the given equation by 4/3
1x = 36/3 . . . . . simplify a bit
x = 12 . . . . . . . . simplify
