Solve for x
x=2
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Linear Equation
5 problems similar to:
6 ( 2 x + 3 ) - 5 ( 4 x - 1 ) = 2 ( 3 x - 7 ) + 3 ( 5 x - 7 )
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12x+18-5\left(4x-1\right)=2\left(3x-7\right)+3\left(5x-7\right)
Use the distributive property to multiply 6 by 2x+3.
12x+18-20x+5=2\left(3x-7\right)+3\left(5x-7\right)
Use the distributive property to multiply -5 by 4x-1.
-8x+18+5=2\left(3x-7\right)+3\left(5x-7\right)
Combine 12x and -20x to get -8x.
-8x+23=2\left(3x-7\right)+3\left(5x-7\right)
Add 18 and 5 to get 23.
-8x+23=6x-14+3\left(5x-7\right)
Use the distributive property to multiply 2 by 3x-7.
-8x+23=6x-14+15x-21
Use the distributive property to multiply 3 by 5x-7.
-8x+23=21x-14-21
Combine 6x and 15x to get 21x.
-8x+23=21x-35
Subtract 21 from -14 to get -35.
-8x+23-21x=-35
Subtract 21x from both sides.
-29x+23=-35
Combine -8x and -21x to get -29x.
-29x=-35-23
Subtract 23 from both sides.
-29x=-58
Subtract 23 from -35 to get -58.
x=\frac{-58}{-29}
Divide both sides by -29.
x=2
Divide -58 by -29 to get 2.
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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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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}