Solve for x
x=-5.25
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0.4x=-1.3-0.8
Subtract 0.8 from both sides.
0.4x=-2.1
Subtract 0.8 from -1.3 to get -2.1.
x=\frac{-2.1}{0.4}
Divide both sides by 0.4.
x=\frac{-21}{4}
Expand \frac{-2.1}{0.4} by multiplying both numerator and the denominator by 10.
x=-\frac{21}{4}
Fraction \frac{-21}{4} can be rewritten as -\frac{21}{4} by extracting the negative sign.
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