Solve for x
x=3
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4x-20+3x+1=2\left(x-2\right)+15\left(x-3\right)
Use the distributive property to multiply 4 by x-5.
7x-20+1=2\left(x-2\right)+15\left(x-3\right)
Combine 4x and 3x to get 7x.
7x-19=2\left(x-2\right)+15\left(x-3\right)
Add -20 and 1 to get -19.
7x-19=2x-4+15\left(x-3\right)
Use the distributive property to multiply 2 by x-2.
7x-19=2x-4+15x-45
Use the distributive property to multiply 15 by x-3.
7x-19=17x-4-45
Combine 2x and 15x to get 17x.
7x-19=17x-49
Subtract 45 from -4 to get -49.
7x-19-17x=-49
Subtract 17x from both sides.
-10x-19=-49
Combine 7x and -17x to get -10x.
-10x=-49+19
Add 19 to both sides.
-10x=-30
Add -49 and 19 to get -30.
x=\frac{-30}{-10}
Divide both sides by -10.
x=3
Divide -30 by -10 to get 3.
Examples
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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
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}