Solve for x
x=3.5
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6-0.32\times 10=0.8x
Multiply 0.4 and 0.8 to get 0.32.
6-3.2=0.8x
Multiply 0.32 and 10 to get 3.2.
2.8=0.8x
Subtract 3.2 from 6 to get 2.8.
0.8x=2.8
Swap sides so that all variable terms are on the left hand side.
x=\frac{2.8}{0.8}
Divide both sides by 0.8.
x=\frac{28}{8}
Expand \frac{2.8}{0.8} by multiplying both numerator and the denominator by 10.
x=\frac{7}{2}
Reduce the fraction \frac{28}{8} to lowest terms by extracting and canceling out 4.
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