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3.2=-\frac{1}{20}x+8
Fraction \frac{-1}{20} can be rewritten as -\frac{1}{20} by extracting the negative sign.
-\frac{1}{20}x+8=3.2
Swap sides so that all variable terms are on the left hand side.
-\frac{1}{20}x=3.2-8
Subtract 8 from both sides.
-\frac{1}{20}x=-4.8
Subtract 8 from 3.2 to get -4.8.
x=-4.8\left(-20\right)
Multiply both sides by -20, the reciprocal of -\frac{1}{20}.
x=96
Multiply -4.8 and -20 to get 96.