Solve for x
x=-\frac{8}{11}\approx -0.727272727
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7+\frac{2}{\frac{7\left(1+x\right)}{1+x}-\frac{2}{1+x}}=1
To add or subtract expressions, expand them to make their denominators the same. Multiply 7 times \frac{1+x}{1+x}.
7+\frac{2}{\frac{7\left(1+x\right)-2}{1+x}}=1
Since \frac{7\left(1+x\right)}{1+x} and \frac{2}{1+x} have the same denominator, subtract them by subtracting their numerators.
7+\frac{2}{\frac{7+7x-2}{1+x}}=1
Do the multiplications in 7\left(1+x\right)-2.
7+\frac{2}{\frac{5+7x}{1+x}}=1
Combine like terms in 7+7x-2.
7+\frac{2\left(1+x\right)}{5+7x}=1
Variable x cannot be equal to -1 since division by zero is not defined. Divide 2 by \frac{5+7x}{1+x} by multiplying 2 by the reciprocal of \frac{5+7x}{1+x}.
\frac{7\left(5+7x\right)}{5+7x}+\frac{2\left(1+x\right)}{5+7x}=1
To add or subtract expressions, expand them to make their denominators the same. Multiply 7 times \frac{5+7x}{5+7x}.
\frac{7\left(5+7x\right)+2\left(1+x\right)}{5+7x}=1
Since \frac{7\left(5+7x\right)}{5+7x} and \frac{2\left(1+x\right)}{5+7x} have the same denominator, add them by adding their numerators.
\frac{35+49x+2+2x}{5+7x}=1
Do the multiplications in 7\left(5+7x\right)+2\left(1+x\right).
\frac{37+51x}{5+7x}=1
Combine like terms in 35+49x+2+2x.
37+51x=7x+5
Variable x cannot be equal to -\frac{5}{7} since division by zero is not defined. Multiply both sides of the equation by 7x+5.
37+51x-7x=5
Subtract 7x from both sides.
37+44x=5
Combine 51x and -7x to get 44x.
44x=5-37
Subtract 37 from both sides.
44x=-32
Subtract 37 from 5 to get -32.
x=\frac{-32}{44}
Divide both sides by 44.
x=-\frac{8}{11}
Reduce the fraction \frac{-32}{44} to lowest terms by extracting and canceling out 4.
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}