Solve for x
x = -\frac{13}{7} = -1\frac{6}{7} \approx -1.857142857
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-3x-15-2=4\left(x-1\right)
Use the distributive property to multiply -3 by x+5.
-3x-17=4\left(x-1\right)
Subtract 2 from -15 to get -17.
-3x-17=4x-4
Use the distributive property to multiply 4 by x-1.
-3x-17-4x=-4
Subtract 4x from both sides.
-7x-17=-4
Combine -3x and -4x to get -7x.
-7x=-4+17
Add 17 to both sides.
-7x=13
Add -4 and 17 to get 13.
x=\frac{13}{-7}
Divide both sides by -7.
x=-\frac{13}{7}
Fraction \frac{13}{-7} can be rewritten as -\frac{13}{7} by extracting the negative sign.
Examples
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{ 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}