Solve for q
q=-\frac{1}{2}=-0.5
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\frac{1}{2}\times 9+3q-2=1
Calculate -3 to the power of 2 and get 9.
\frac{9}{2}+3q-2=1
Multiply \frac{1}{2} and 9 to get \frac{9}{2}.
\frac{9}{2}+3q-\frac{4}{2}=1
Convert 2 to fraction \frac{4}{2}.
\frac{9-4}{2}+3q=1
Since \frac{9}{2} and \frac{4}{2} have the same denominator, subtract them by subtracting their numerators.
\frac{5}{2}+3q=1
Subtract 4 from 9 to get 5.
3q=1-\frac{5}{2}
Subtract \frac{5}{2} from both sides.
3q=\frac{2}{2}-\frac{5}{2}
Convert 1 to fraction \frac{2}{2}.
3q=\frac{2-5}{2}
Since \frac{2}{2} and \frac{5}{2} have the same denominator, subtract them by subtracting their numerators.
3q=-\frac{3}{2}
Subtract 5 from 2 to get -3.
q=\frac{-\frac{3}{2}}{3}
Divide both sides by 3.
q=\frac{-3}{2\times 3}
Express \frac{-\frac{3}{2}}{3} as a single fraction.
q=\frac{-3}{6}
Multiply 2 and 3 to get 6.
q=-\frac{1}{2}
Reduce the fraction \frac{-3}{6} to lowest terms by extracting and canceling out 3.
Examples
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4 \sin \theta \cos \theta = 2 \sin \theta
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}