Solve for x
x=\frac{1}{2}=0.5
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\frac{1}{3}\times 15x+\frac{1}{3}\left(-12\right)=9x-6
Use the distributive property to multiply \frac{1}{3} by 15x-12.
\frac{15}{3}x+\frac{1}{3}\left(-12\right)=9x-6
Multiply \frac{1}{3} and 15 to get \frac{15}{3}.
5x+\frac{1}{3}\left(-12\right)=9x-6
Divide 15 by 3 to get 5.
5x+\frac{-12}{3}=9x-6
Multiply \frac{1}{3} and -12 to get \frac{-12}{3}.
5x-4=9x-6
Divide -12 by 3 to get -4.
5x-4-9x=-6
Subtract 9x from both sides.
-4x-4=-6
Combine 5x and -9x to get -4x.
-4x=-6+4
Add 4 to both sides.
-4x=-2
Add -6 and 4 to get -2.
x=\frac{-2}{-4}
Divide both sides by -4.
x=\frac{1}{2}
Reduce the fraction \frac{-2}{-4} to lowest terms by extracting and canceling out -2.
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\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 ) }
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Limits
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