Solve for x
x=3
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4x-\left(x+1\right)=x+1+4
Multiply both sides of the equation by 2.
4x-x-1=x+1+4
To find the opposite of x+1, find the opposite of each term.
3x-1=x+1+4
Combine 4x and -x to get 3x.
3x-1=x+5
Add 1 and 4 to get 5.
3x-1-x=5
Subtract x from both sides.
2x-1=5
Combine 3x and -x to get 2x.
2x=5+1
Add 1 to both sides.
2x=6
Add 5 and 1 to get 6.
x=\frac{6}{2}
Divide both sides by 2.
x=3
Divide 6 by 2 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
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}