Datrysa'r hafaliad: \({c}-{7}={1}{2}\)
\[{c}={5}\]
\[{c}={19}\]
\[{c}={-5}\]
Datrysa'r hafaliad: \({5}-{x}={9}\)
\[{x}={4}\]
\[{x}={14}\]
\[{x}=-{4}\]
Beth ydy gwerth \({c}\) os ydy \({7}{c}={63}\)?
\[{c}={56}\]
\[{c}={9}\]
\[{c}={-9}\]
Datrysa'r hafaliad: \({3}{x}+{7}={10}\)
\[{x}={1}\]
\[{x}={-1}\]
\[{x}={3}\]
Datrysa'r hafaliad: \({9}-{5}{x}={24}\)
\[{x}={-3}\]
\[{x}={6.6}\]
Datrysa'r hafaliad: \({6}{x}+{5}={19}-{x}\)
\[{x}={2}\]
\[{x}={4.8}\]
\[{x}={-2}\]
Datrysa'r hafaliad: \({4}({2}{y}-{3})={3}({y}+{6})\)
\[{y}={9}\]
\[{y}={6}\]
\[{y}={1.2}\]
Datrysa'r hafaliad: \({4}{x}-{5}=\frac{1}{3}\)
\[{x}=\frac{7}{6}\]
\[{x}=\frac{4}{3}\]
\[{x}=\frac{5}{12}\]
Datrysa'r hafaliad: \(\frac{({y}-{4})}{2}=\frac{({2}-{y})}{3}\)
\[{y}={4}\]
\[{y}={8}\]
\[{y}={3.2}\]
Datrysa'r hafaliad: \(\frac{({x}+{7})}{6}=\frac{x}{3}\)
\[{x}=\frac{7}{3}\]
\[{x}={-14}\]
\[{x}={7}\]