Datrys ar gyfer x
x=1
x=17
Graff
Rhannu
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|\frac{1}{2}x-\frac{9}{2}|=4
Rhannu pob term x-9 â 2 i gael \frac{1}{2}x-\frac{9}{2}.
\frac{1}{2}x-\frac{9}{2}=4 \frac{1}{2}x-\frac{9}{2}=-4
Defnyddio diffiniad gwerth absoliwt.
\frac{1}{2}x=\frac{17}{2} \frac{1}{2}x=\frac{1}{2}
Adio \frac{9}{2} at ddwy ochr yr hafaliad.
x=17 x=1
Lluosi’r ddwy ochr â 2.
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