Solve for x
x=-35
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-\frac{2}{3}\sqrt{-x+1}+7-7=3-7
Subtract 7 from both sides of the equation.
-\frac{2}{3}\sqrt{-x+1}=3-7
Subtracting 7 from itself leaves 0.
-\frac{2}{3}\sqrt{-x+1}=-4
Subtract 7 from 3.
\frac{-\frac{2}{3}\sqrt{-x+1}}{-\frac{2}{3}}=-\frac{4}{-\frac{2}{3}}
Divide both sides of the equation by -\frac{2}{3}, which is the same as multiplying both sides by the reciprocal of the fraction.
\sqrt{-x+1}=-\frac{4}{-\frac{2}{3}}
Dividing by -\frac{2}{3} undoes the multiplication by -\frac{2}{3}.
\sqrt{-x+1}=6
Divide -4 by -\frac{2}{3} by multiplying -4 by the reciprocal of -\frac{2}{3}.
-x+1=36
Square both sides of the equation.
-x+1-1=36-1
Subtract 1 from both sides of the equation.
-x=36-1
Subtracting 1 from itself leaves 0.
-x=35
Subtract 1 from 36.
\frac{-x}{-1}=\frac{35}{-1}
Divide both sides by -1.
x=\frac{35}{-1}
Dividing by -1 undoes the multiplication by -1.
x=-35
Divide 35 by -1.
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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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