Solve for x
x=0.2125
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8x=1.3+0.4
Add 0.4 to both sides.
8x=1.7
Add 1.3 and 0.4 to get 1.7.
x=\frac{1.7}{8}
Divide both sides by 8.
x=\frac{17}{80}
Expand \frac{1.7}{8} by multiplying both numerator and the denominator by 10.
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