Solve for a
a=9x+\frac{75}{2}
Solve for x
x=\frac{a}{9}-\frac{25}{6}
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\frac{2}{3}a=6x+25
Calculate 5 to the power of 2 and get 25.
\frac{\frac{2}{3}a}{\frac{2}{3}}=\frac{6x+25}{\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.
a=\frac{6x+25}{\frac{2}{3}}
Dividing by \frac{2}{3} undoes the multiplication by \frac{2}{3}.
a=9x+\frac{75}{2}
Divide 6x+25 by \frac{2}{3} by multiplying 6x+25 by the reciprocal of \frac{2}{3}.
\frac{2}{3}a=6x+25
Calculate 5 to the power of 2 and get 25.
6x+25=\frac{2}{3}a
Swap sides so that all variable terms are on the left hand side.
6x=\frac{2}{3}a-25
Subtract 25 from both sides.
6x=\frac{2a}{3}-25
The equation is in standard form.
\frac{6x}{6}=\frac{\frac{2a}{3}-25}{6}
Divide both sides by 6.
x=\frac{\frac{2a}{3}-25}{6}
Dividing by 6 undoes the multiplication by 6.
x=\frac{a}{9}-\frac{25}{6}
Divide \frac{2a}{3}-25 by 6.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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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}