Solve for x
x=-9
Graph
Quiz
Linear Equation
5 problems similar to:
\frac{ x+3 }{ 35 } + \frac{ x-1 }{ 7 } = \frac{ x+1 }{ 5 }
Share
Copied to clipboard
x+3+5\left(x-1\right)=7\left(x+1\right)
Multiply both sides of the equation by 35, the least common multiple of 35,7,5.
x+3+5x-5=7\left(x+1\right)
Use the distributive property to multiply 5 by x-1.
6x+3-5=7\left(x+1\right)
Combine x and 5x to get 6x.
6x-2=7\left(x+1\right)
Subtract 5 from 3 to get -2.
6x-2=7x+7
Use the distributive property to multiply 7 by x+1.
6x-2-7x=7
Subtract 7x from both sides.
-x-2=7
Combine 6x and -7x to get -x.
-x=7+2
Add 2 to both sides.
-x=9
Add 7 and 2 to get 9.
x=-9
Multiply both sides by -1.
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}