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-3(2x-9)=3(16-x)
por favor

User Daulat
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1 Answer

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- 3(2x - 9) = 3(16 - x) \\ \\ \longrightarrow \: - 6x + 27 = 48 - 3x \\ \\ \longrightarrow \: - 3x + 6x = 27 - 48 \\ \\ \longrightarrow \: 3x = 21 \\ \\ \: dividing \: both \: sides \: by \: 3 , \\ \\ \longrightarrow \: \frac{\cancel{3}x}{\cancel{3}} = \cancel{( -21)/(3)} \\ \\ \longrightarrow \: \boxed{x = - 7}

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User Szopinski
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