Datrys ar gyfer x
x = -\frac{675}{7} = -96\frac{3}{7} \approx -96.428571429
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Rhannu
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x+25=\left(x+5\right)\times \frac{\frac{5}{2}}{\frac{16}{5}}
All y newidyn x ddim fod yn hafal i -5 gan nad ydy rhannu â sero wedi’i ddiffinio. Lluoswch ddwy ochr yr hafaliad â x+5.
x+25=\left(x+5\right)\times \frac{5}{2}\times \frac{5}{16}
Rhannwch \frac{5}{2} â \frac{16}{5} drwy luosi \frac{5}{2} â chilydd \frac{16}{5}.
x+25=\left(x+5\right)\times \frac{25}{32}
Lluosi \frac{5}{2} a \frac{5}{16} i gael \frac{25}{32}.
x+25=\frac{25}{32}x+\frac{125}{32}
Defnyddio’r briodwedd ddosbarthu i luosi x+5 â \frac{25}{32}.
x+25-\frac{25}{32}x=\frac{125}{32}
Tynnu \frac{25}{32}x o'r ddwy ochr.
\frac{7}{32}x+25=\frac{125}{32}
Cyfuno x a -\frac{25}{32}x i gael \frac{7}{32}x.
\frac{7}{32}x=\frac{125}{32}-25
Tynnu 25 o'r ddwy ochr.
\frac{7}{32}x=-\frac{675}{32}
Tynnu 25 o \frac{125}{32} i gael -\frac{675}{32}.
x=-\frac{675}{32}\times \frac{32}{7}
Lluoswch y ddwy ochr â \frac{32}{7}, cilyddol \frac{7}{32}.
x=-\frac{675}{7}
Lluosi -\frac{675}{32} a \frac{32}{7} i gael -\frac{675}{7}.
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