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3x+9.1=8
Multiply 7 and 1.3 to get 9.1.
3x=8-9.1
Subtract 9.1 from both sides.
3x=-1.1
Subtract 9.1 from 8 to get -1.1.
x=\frac{-1.1}{3}
Divide both sides by 3.
x=\frac{-11}{30}
Expand \frac{-1.1}{3} by multiplying both numerator and the denominator by 10.
x=-\frac{11}{30}
Fraction \frac{-11}{30} can be rewritten as -\frac{11}{30} by extracting the negative sign.