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-12-\left(-1\right)=-\left(3\times 3+2\right)
Multiply both sides of the equation by 3.
-12+1=-\left(3\times 3+2\right)
The opposite of -1 is 1.
-11=-\left(3\times 3+2\right)
Add -12 and 1 to get -11.
-11=-\left(9+2\right)
Multiply 3 and 3 to get 9.
-11=-11
Add 9 and 2 to get 11.
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Compare -11 and -11.
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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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