Solve for x
x=0.325
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4x=0.9+0.4
Add 0.4 to both sides.
4x=1.3
Add 0.9 and 0.4 to get 1.3.
x=\frac{1.3}{4}
Divide both sides by 4.
x=\frac{13}{40}
Expand \frac{1.3}{4} by multiplying both numerator and the denominator by 10.
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Limits
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