Solve for x
x=9y-4z+1
Solve for y
y=\frac{x+4z-1}{9}
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2x+8z=2+18y
Add 18y to both sides.
2x=2+18y-8z
Subtract 8z from both sides.
2x=18y-8z+2
The equation is in standard form.
\frac{2x}{2}=\frac{18y-8z+2}{2}
Divide both sides by 2.
x=\frac{18y-8z+2}{2}
Dividing by 2 undoes the multiplication by 2.
x=9y-4z+1
Divide 2+18y-8z by 2.
-18y+8z=2-2x
Subtract 2x from both sides.
-18y=2-2x-8z
Subtract 8z from both sides.
-18y=2-8z-2x
The equation is in standard form.
\frac{-18y}{-18}=\frac{2-8z-2x}{-18}
Divide both sides by -18.
y=\frac{2-8z-2x}{-18}
Dividing by -18 undoes the multiplication by -18.
y=\frac{x+4z-1}{9}
Divide 2-2x-8z by -18.
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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