Solve for x
x=2
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3-\frac{2}{3}x-\frac{2}{3}=\frac{1}{2}x
Use the distributive property to multiply -\frac{2}{3} by x+1.
\frac{9}{3}-\frac{2}{3}x-\frac{2}{3}=\frac{1}{2}x
Convert 3 to fraction \frac{9}{3}.
\frac{9-2}{3}-\frac{2}{3}x=\frac{1}{2}x
Since \frac{9}{3} and \frac{2}{3} have the same denominator, subtract them by subtracting their numerators.
\frac{7}{3}-\frac{2}{3}x=\frac{1}{2}x
Subtract 2 from 9 to get 7.
\frac{7}{3}-\frac{2}{3}x-\frac{1}{2}x=0
Subtract \frac{1}{2}x from both sides.
\frac{7}{3}-\frac{7}{6}x=0
Combine -\frac{2}{3}x and -\frac{1}{2}x to get -\frac{7}{6}x.
-\frac{7}{6}x=-\frac{7}{3}
Subtract \frac{7}{3} from both sides. Anything subtracted from zero gives its negation.
x=-\frac{7}{3}\left(-\frac{6}{7}\right)
Multiply both sides by -\frac{6}{7}, the reciprocal of -\frac{7}{6}.
x=\frac{-7\left(-6\right)}{3\times 7}
Multiply -\frac{7}{3} times -\frac{6}{7} by multiplying numerator times numerator and denominator times denominator.
x=\frac{42}{21}
Do the multiplications in the fraction \frac{-7\left(-6\right)}{3\times 7}.
x=2
Divide 42 by 21 to get 2.
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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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}