Question

Va rog frumos ajutați mă la ex 5 la BED pe rînd ​

Answer 1

Bună!

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$b) 2x+(3-6x)=-17 => 2x+3-6x=-17/-3 => -4x=-20 => x=5$

$d) \frac{1}{5} (2x-1)=4 => \frac{2x}{5} -\frac{1}{5} =4/*5=> 2x-1=20 => 2x=21=> x=\frac{21}{2}$

$e) \frac{2}{3} ( 4x-\frac{1}{3} )=\frac{1}{9}/*\frac{3}{2} =>4x-\frac{1}{3} =\frac{1}{6} /*6 => 24x=3 => x=\frac{3}{24} ^{(3} => x=\frac{1}{8}$