Resolver 2/1*45-1/x+5 | Microsoft Math Solver

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Copiado a portapapeis

\frac{2}{45}-\frac{1}{x+5}

Multiplica 1 e 45 para obter 45.

\frac{2\left(x+5\right)}{45\left(x+5\right)}-\frac{45}{45\left(x+5\right)}

Para sumar ou restar expresións, expándeas para facer que os seus denominadores sexan iguais. O mínimo común múltiplo de 45 e x+5 é 45\left(x+5\right). Multiplica \frac{2}{45} por \frac{x+5}{x+5}. Multiplica \frac{1}{x+5} por \frac{45}{45}.

\frac{2\left(x+5\right)-45}{45\left(x+5\right)}

Dado que \frac{2\left(x+5\right)}{45\left(x+5\right)} e \frac{45}{45\left(x+5\right)} teñen o mesmo denominador, réstaos mediante a resta dos seus numeradores.

\frac{2x+10-45}{45\left(x+5\right)}

Fai as multiplicacións en 2\left(x+5\right)-45.

\frac{2x-35}{45\left(x+5\right)}

Combina como termos en 2x+10-45.

\frac{2x-35}{45x+225}

Expande 45\left(x+5\right).