Solve for x
x=5
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Linear Equation
5 problems similar to:
x + \frac { 2 ( x - 3 ) } { 3 } = 6 - \frac { x - 7 } { 6 }
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6x+2\times 2\left(x-3\right)=36-\left(x-7\right)
Multiply both sides of the equation by 6, the least common multiple of 3,6.
6x+4\left(x-3\right)=36-\left(x-7\right)
Multiply 2 and 2 to get 4.
6x+4x-12=36-\left(x-7\right)
Use the distributive property to multiply 4 by x-3.
10x-12=36-\left(x-7\right)
Combine 6x and 4x to get 10x.
10x-12=36-x-\left(-7\right)
To find the opposite of x-7, find the opposite of each term.
10x-12=36-x+7
The opposite of -7 is 7.
10x-12=43-x
Add 36 and 7 to get 43.
10x-12+x=43
Add x to both sides.
11x-12=43
Combine 10x and x to get 11x.
11x=43+12
Add 12 to both sides.
11x=55
Add 43 and 12 to get 55.
x=\frac{55}{11}
Divide both sides by 11.
x=5
Divide 55 by 11 to get 5.
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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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}