Solve for x
x=\frac{5}{7}\approx 0.714285714
Graph
Share
Copied to clipboard
5x-\left(1-3-2x\right)=7
To find the opposite of 3+2x, find the opposite of each term.
5x-\left(-2-2x\right)=7
Subtract 3 from 1 to get -2.
5x-\left(-2\right)-\left(-2x\right)=7
To find the opposite of -2-2x, find the opposite of each term.
5x+2-\left(-2x\right)=7
The opposite of -2 is 2.
5x+2+2x=7
The opposite of -2x is 2x.
7x+2=7
Combine 5x and 2x to get 7x.
7x=7-2
Subtract 2 from both sides.
7x=5
Subtract 2 from 7 to get 5.
x=\frac{5}{7}
Divide both sides by 7.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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}