Solve for x
x=-1
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Linear Equation
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\frac{ 25 }{ 4 } =-( \frac{ 3 }{ 2 } -x)( \frac{ 3 }{ 2 } -4)
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\frac{25}{4}=\left(-\frac{3}{2}-\left(-x\right)\right)\left(\frac{3}{2}-4\right)
To find the opposite of \frac{3}{2}-x, find the opposite of each term.
\frac{25}{4}=\left(-\frac{3}{2}+x\right)\left(\frac{3}{2}-4\right)
The opposite of -x is x.
\frac{25}{4}=\left(-\frac{3}{2}+x\right)\left(\frac{3}{2}-\frac{8}{2}\right)
Convert 4 to fraction \frac{8}{2}.
\frac{25}{4}=\left(-\frac{3}{2}+x\right)\times \frac{3-8}{2}
Since \frac{3}{2} and \frac{8}{2} have the same denominator, subtract them by subtracting their numerators.
\frac{25}{4}=\left(-\frac{3}{2}+x\right)\left(-\frac{5}{2}\right)
Subtract 8 from 3 to get -5.
\frac{25}{4}=-\frac{3}{2}\left(-\frac{5}{2}\right)+x\left(-\frac{5}{2}\right)
Use the distributive property to multiply -\frac{3}{2}+x by -\frac{5}{2}.
\frac{25}{4}=\frac{-3\left(-5\right)}{2\times 2}+x\left(-\frac{5}{2}\right)
Multiply -\frac{3}{2} times -\frac{5}{2} by multiplying numerator times numerator and denominator times denominator.
\frac{25}{4}=\frac{15}{4}+x\left(-\frac{5}{2}\right)
Do the multiplications in the fraction \frac{-3\left(-5\right)}{2\times 2}.
\frac{15}{4}+x\left(-\frac{5}{2}\right)=\frac{25}{4}
Swap sides so that all variable terms are on the left hand side.
x\left(-\frac{5}{2}\right)=\frac{25}{4}-\frac{15}{4}
Subtract \frac{15}{4} from both sides.
x\left(-\frac{5}{2}\right)=\frac{25-15}{4}
Since \frac{25}{4} and \frac{15}{4} have the same denominator, subtract them by subtracting their numerators.
x\left(-\frac{5}{2}\right)=\frac{10}{4}
Subtract 15 from 25 to get 10.
x\left(-\frac{5}{2}\right)=\frac{5}{2}
Reduce the fraction \frac{10}{4} to lowest terms by extracting and canceling out 2.
x=\frac{5}{2}\left(-\frac{2}{5}\right)
Multiply both sides by -\frac{2}{5}, the reciprocal of -\frac{5}{2}.
x=\frac{5\left(-2\right)}{2\times 5}
Multiply \frac{5}{2} times -\frac{2}{5} by multiplying numerator times numerator and denominator times denominator.
x=\frac{-2}{2}
Cancel out 5 in both numerator and denominator.
x=-1
Divide -2 by 2 to get -1.
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\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}