Solve for x
x=-6
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-x+8x-7=-1-4x+12x
Subtract 8 from 7 to get -1.
-x+8x-7=-1+8x
Combine -4x and 12x to get 8x.
-x+8x-7-8x=-1
Subtract 8x from both sides.
-x-7=-1
Combine 8x and -8x to get 0.
-x=-1+7
Add 7 to both sides.
-x=6
Add -1 and 7 to get 6.
x=-6
Multiply both sides 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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