Solve for x
x = \frac{13}{2} = 6\frac{1}{2} = 6.5
Graph
Share
Copied to clipboard
100x-\left(-100x\right)-1400=-100
To find the opposite of -100x+1400, find the opposite of each term.
100x+100x-1400=-100
The opposite of -100x is 100x.
200x-1400=-100
Combine 100x and 100x to get 200x.
200x=-100+1400
Add 1400 to both sides.
200x=1300
Add -100 and 1400 to get 1300.
x=\frac{1300}{200}
Divide both sides by 200.
x=\frac{13}{2}
Reduce the fraction \frac{1300}{200} to lowest terms by extracting and canceling out 100.
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}