\{ 10 x + 5 y = 3
Solve for x
x=-\frac{y}{2}+\frac{3}{10}
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10x=3-5y
Subtract 5y from both sides.
\frac{10x}{10}=\frac{3-5y}{10}
Divide both sides by 10.
x=\frac{3-5y}{10}
Dividing by 10 undoes the multiplication by 10.
x=-\frac{y}{2}+\frac{3}{10}
Divide 3-5y by 10.
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