Solve for x
x=-6.25
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0.8x+5=0
Multiply 2 and 0.4 to get 0.8.
0.8x=-5
Subtract 5 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-5}{0.8}
Divide both sides by 0.8.
x=\frac{-50}{8}
Expand \frac{-5}{0.8} by multiplying both numerator and the denominator by 10.
x=-\frac{25}{4}
Reduce the fraction \frac{-50}{8} to lowest terms by extracting and canceling out 2.
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