Solve for x
x=\frac{4y-5}{3}
Solve for y
y=\frac{3x+5}{4}
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-3x=5-4y
Subtract 4y from both sides.
\frac{-3x}{-3}=\frac{5-4y}{-3}
Divide both sides by -3.
x=\frac{5-4y}{-3}
Dividing by -3 undoes the multiplication by -3.
x=\frac{4y-5}{3}
Divide 5-4y by -3.
4y=5+3x
Add 3x to both sides.
4y=3x+5
The equation is in standard form.
\frac{4y}{4}=\frac{3x+5}{4}
Divide both sides by 4.
y=\frac{3x+5}{4}
Dividing by 4 undoes the multiplication by 4.
Examples
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y = 3x + 4
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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