Solve for x
x=\frac{3}{5}=0.6
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3+x\left(-1\right)=4x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
3+x\left(-1\right)-4x=0
Subtract 4x from both sides.
3-5x=0
Combine x\left(-1\right) and -4x to get -5x.
-5x=-3
Subtract 3 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-3}{-5}
Divide both sides by -5.
x=\frac{3}{5}
Fraction \frac{-3}{-5} can be simplified to \frac{3}{5} by removing the negative sign from both the numerator and the denominator.
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
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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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