Datrys ar gyfer x
x=25
Graff
Cwis
Linear Equation
5 problemau tebyg i:
\frac { 1 } { 5 } ( x + 20 ) = - x + 14 + \frac { 4 } { 5 } x
Rhannu
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\frac{1}{5}x+\frac{1}{5}\times 20=-x+14+\frac{4}{5}x
Defnyddio’r briodwedd ddosbarthu i luosi \frac{1}{5} â x+20.
\frac{1}{5}x+\frac{20}{5}=-x+14+\frac{4}{5}x
Lluosi \frac{1}{5} a 20 i gael \frac{20}{5}.
\frac{1}{5}x+4=-x+14+\frac{4}{5}x
Rhannu 20 â 5 i gael 4.
\frac{1}{5}x+4+x=14+\frac{4}{5}x
Ychwanegu x at y ddwy ochr.
\frac{6}{5}x+4=14+\frac{4}{5}x
Cyfuno \frac{1}{5}x a x i gael \frac{6}{5}x.
\frac{6}{5}x+4-\frac{4}{5}x=14
Tynnu \frac{4}{5}x o'r ddwy ochr.
\frac{2}{5}x+4=14
Cyfuno \frac{6}{5}x a -\frac{4}{5}x i gael \frac{2}{5}x.
\frac{2}{5}x=14-4
Tynnu 4 o'r ddwy ochr.
\frac{2}{5}x=10
Tynnu 4 o 14 i gael 10.
x=10\times \frac{5}{2}
Lluoswch y ddwy ochr â \frac{5}{2}, cilyddol \frac{2}{5}.
x=\frac{10\times 5}{2}
Mynegwch 10\times \frac{5}{2} fel ffracsiwn unigol.
x=\frac{50}{2}
Lluosi 10 a 5 i gael 50.
x=25
Rhannu 50 â 2 i gael 25.
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