Solve for x
x = \frac{7}{2} = 3\frac{1}{2} = 3.5
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Linear Equation
5 problems similar to:
\frac{ x-2 }{ 6 } - \frac{ x+1 }{ 3 } + \frac{ x-1 }{ 2 } =0
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x-2-2\left(x+1\right)+3\left(x-1\right)=0
Multiply both sides of the equation by 6, the least common multiple of 6,3,2.
x-2-2x-2+3\left(x-1\right)=0
Use the distributive property to multiply -2 by x+1.
-x-2-2+3\left(x-1\right)=0
Combine x and -2x to get -x.
-x-4+3\left(x-1\right)=0
Subtract 2 from -2 to get -4.
-x-4+3x-3=0
Use the distributive property to multiply 3 by x-1.
2x-4-3=0
Combine -x and 3x to get 2x.
2x-7=0
Subtract 3 from -4 to get -7.
2x=7
Add 7 to both sides. Anything plus zero gives itself.
x=\frac{7}{2}
Divide both sides by 2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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699 * 533
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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}