Datrys ar gyfer x
x=-81
Graff
Rhannu
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-\frac{1}{9}x-\frac{1}{9}\left(-27\right)+\frac{1}{3}\left(x+3\right)=x+67
Defnyddio’r briodwedd ddosbarthu i luosi -\frac{1}{9} â x-27.
-\frac{1}{9}x+\frac{-\left(-27\right)}{9}+\frac{1}{3}\left(x+3\right)=x+67
Mynegwch -\frac{1}{9}\left(-27\right) fel ffracsiwn unigol.
-\frac{1}{9}x+\frac{27}{9}+\frac{1}{3}\left(x+3\right)=x+67
Lluosi -1 a -27 i gael 27.
-\frac{1}{9}x+3+\frac{1}{3}\left(x+3\right)=x+67
Rhannu 27 â 9 i gael 3.
-\frac{1}{9}x+3+\frac{1}{3}x+\frac{1}{3}\times 3=x+67
Defnyddio’r briodwedd ddosbarthu i luosi \frac{1}{3} â x+3.
-\frac{1}{9}x+3+\frac{1}{3}x+1=x+67
Canslo 3 a 3.
\frac{2}{9}x+3+1=x+67
Cyfuno -\frac{1}{9}x a \frac{1}{3}x i gael \frac{2}{9}x.
\frac{2}{9}x+4=x+67
Adio 3 a 1 i gael 4.
\frac{2}{9}x+4-x=67
Tynnu x o'r ddwy ochr.
-\frac{7}{9}x+4=67
Cyfuno \frac{2}{9}x a -x i gael -\frac{7}{9}x.
-\frac{7}{9}x=67-4
Tynnu 4 o'r ddwy ochr.
-\frac{7}{9}x=63
Tynnu 4 o 67 i gael 63.
x=63\left(-\frac{9}{7}\right)
Lluoswch y ddwy ochr â -\frac{9}{7}, cilyddol -\frac{7}{9}.
x=\frac{63\left(-9\right)}{7}
Mynegwch 63\left(-\frac{9}{7}\right) fel ffracsiwn unigol.
x=\frac{-567}{7}
Lluosi 63 a -9 i gael -567.
x=-81
Rhannu -567 â 7 i gael -81.
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