Solve for x
x=8-y
Solve for y
y=8-x
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-y-x=1-9
Subtract 9 from both sides.
-y-x=-8
Subtract 9 from 1 to get -8.
-x=-8+y
Add y to both sides.
-x=y-8
The equation is in standard form.
\frac{-x}{-1}=\frac{y-8}{-1}
Divide both sides by -1.
x=\frac{y-8}{-1}
Dividing by -1 undoes the multiplication by -1.
x=8-y
Divide -8+y by -1.
-y-x=1-9
Subtract 9 from both sides.
-y-x=-8
Subtract 9 from 1 to get -8.
-y=-8+x
Add x to both sides.
-y=x-8
The equation is in standard form.
\frac{-y}{-1}=\frac{x-8}{-1}
Divide both sides by -1.
y=\frac{x-8}{-1}
Dividing by -1 undoes the multiplication by -1.
y=8-x
Divide -8+x by -1.
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y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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