Solve for a
a = -\frac{17}{3} = -5\frac{2}{3} \approx -5.666666667
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8\left(-3\right)-2-3a=-9
Calculate 2 to the power of 3 and get 8.
-24-2-3a=-9
Multiply 8 and -3 to get -24.
-26-3a=-9
Subtract 2 from -24 to get -26.
-3a=-9+26
Add 26 to both sides.
-3a=17
Add -9 and 26 to get 17.
a=\frac{17}{-3}
Divide both sides by -3.
a=-\frac{17}{3}
Fraction \frac{17}{-3} can be rewritten as -\frac{17}{3} by extracting the negative sign.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}