Solve for x
x=5
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20\times 2\left(x-2\right)-84-12\left(3-2x\right)=15\left(x+3\right)
Multiply both sides of the equation by 60, the least common multiple of 3,5,4.
40\left(x-2\right)-84-12\left(3-2x\right)=15\left(x+3\right)
Multiply 20 and 2 to get 40.
40x-80-84-12\left(3-2x\right)=15\left(x+3\right)
Use the distributive property to multiply 40 by x-2.
40x-164-12\left(3-2x\right)=15\left(x+3\right)
Subtract 84 from -80 to get -164.
40x-164-36+24x=15\left(x+3\right)
Use the distributive property to multiply -12 by 3-2x.
40x-200+24x=15\left(x+3\right)
Subtract 36 from -164 to get -200.
64x-200=15\left(x+3\right)
Combine 40x and 24x to get 64x.
64x-200=15x+45
Use the distributive property to multiply 15 by x+3.
64x-200-15x=45
Subtract 15x from both sides.
49x-200=45
Combine 64x and -15x to get 49x.
49x=45+200
Add 200 to both sides.
49x=245
Add 45 and 200 to get 245.
x=\frac{245}{49}
Divide both sides by 49.
x=5
Divide 245 by 49 to get 5.
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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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