Datrys ar gyfer x_1, y_1, x_2
x_{1}=440
y_{1}=220
x_{2}=360
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x_{2}=360
Datrys x_{2}=360 ar gyfer x_{2}.
x_{1}=440 y_{1}=220 x_{2}=360
Mae’r system wedi’i datrys nawr.
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