Datrys ar gyfer y
y=-\frac{9}{14}\approx -0.642857143
Graff
Cwis
Linear Equation
\frac { 3 \frac { 1 } { 2 } } { 2 } - 2 \frac { 1 } { 3 } y = 3 \frac { 1 } { 4 }
Rhannu
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6\times \frac{3\times 2+1}{2}-4\left(2\times 3+1\right)y=3\left(3\times 4+1\right)
Lluoswch ddwy ochr yr hafaliad wrth 12, lluoswm cyffredin lleiaf 2,3,4.
6\times \frac{6+1}{2}-4\left(2\times 3+1\right)y=3\left(3\times 4+1\right)
Lluosi 3 a 2 i gael 6.
6\times \frac{7}{2}-4\left(2\times 3+1\right)y=3\left(3\times 4+1\right)
Adio 6 a 1 i gael 7.
\frac{6\times 7}{2}-4\left(2\times 3+1\right)y=3\left(3\times 4+1\right)
Mynegwch 6\times \frac{7}{2} fel ffracsiwn unigol.
\frac{42}{2}-4\left(2\times 3+1\right)y=3\left(3\times 4+1\right)
Lluosi 6 a 7 i gael 42.
21-4\left(2\times 3+1\right)y=3\left(3\times 4+1\right)
Rhannu 42 â 2 i gael 21.
21-4\left(6+1\right)y=3\left(3\times 4+1\right)
Lluosi 2 a 3 i gael 6.
21-4\times 7y=3\left(3\times 4+1\right)
Adio 6 a 1 i gael 7.
21-28y=3\left(3\times 4+1\right)
Lluosi 4 a 7 i gael 28.
21-28y=3\left(12+1\right)
Lluosi 3 a 4 i gael 12.
21-28y=3\times 13
Adio 12 a 1 i gael 13.
21-28y=39
Lluosi 3 a 13 i gael 39.
-28y=39-21
Tynnu 21 o'r ddwy ochr.
-28y=18
Tynnu 21 o 39 i gael 18.
y=\frac{18}{-28}
Rhannu’r ddwy ochr â -28.
y=-\frac{9}{14}
Lleihau'r ffracsiwn \frac{18}{-28} i'r graddau lleiaf posib drwy dynnu a chanslo allan 2.
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