Solve for a
a=-\frac{3}{x}
x\neq 0
Solve for x
x=-\frac{3}{a}
a\neq 0
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ax=-3
Subtract 3 from both sides. Anything subtracted from zero gives its negation.
xa=-3
The equation is in standard form.
\frac{xa}{x}=-\frac{3}{x}
Divide both sides by x.
a=-\frac{3}{x}
Dividing by x undoes the multiplication by x.
ax=-3
Subtract 3 from both sides. Anything subtracted from zero gives its negation.
\frac{ax}{a}=-\frac{3}{a}
Divide both sides by a.
x=-\frac{3}{a}
Dividing by a undoes the multiplication by a.
Examples
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Linear equation
y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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