Solve for x, n
x=3
n=3
Share
Copied to clipboard
3x+4=1+4x
Consider the first equation. Cancel out -6 on both sides.
3x+4-4x=1
Subtract 4x from both sides.
-x+4=1
Combine 3x and -4x to get -x.
-x=1-4
Subtract 4 from both sides.
-x=-3
Subtract 4 from 1 to get -3.
x=\frac{-3}{-1}
Divide both sides by -1.
x=3
Fraction \frac{-3}{-1} can be simplified to 3 by removing the negative sign from both the numerator and the denominator.
n=-3+6
Consider the second equation. Add 6 to both sides.
n=3
Add -3 and 6 to get 3.
x=3 n=3
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}