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0.15n+4-.2n=.38n-.3
We simplify the equation to the form, which is simple to understand
0.15n+4-.2n=.38n-.3
We move all terms containing n to the left and all other terms to the right.
+ 0.15n-0.2n-0.38n=-0.3-4
We simplify left and right side of the equation.
-0.43n=-4.3
We divide both sides of the equation by -0.43 to get n.
n=10
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