8-5(3-2n)=n-4(n+9) solve in unitary method
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8-5(3-2n)=n-4(n+9)
8-15+10n=n-4n-36
-7+10n=-3n-36
10n+3n=-36+7
13n=-29
n=-29/13
8-15+10n=n-4n-36
-7+10n=-3n-36
10n+3n=-36+7
13n=-29
n=-29/13
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