Solve for x, y
x=1
y = -\frac{7}{2} = -3\frac{1}{2} = -3.5
Graph
Share
Copied to clipboard
x=\frac{-6}{-6}
Consider the second equation. Divide both sides by -6.
x=1
Divide -6 by -6 to get 1.
6\times 1-4y=20
Consider the first equation. Insert the known values of variables into the equation.
6-4y=20
Multiply 6 and 1 to get 6.
-4y=20-6
Subtract 6 from both sides.
-4y=14
Subtract 6 from 20 to get 14.
y=\frac{14}{-4}
Divide both sides by -4.
y=-\frac{7}{2}
Reduce the fraction \frac{14}{-4} to lowest terms by extracting and canceling out 2.
x=1 y=-\frac{7}{2}
The system is now solved.
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}