Solve for d
d=-8.9
Share
Copied to clipboard
-9.39-3.4d+1.1d=11.08
Add 1.1d to both sides.
-9.39-2.3d=11.08
Combine -3.4d and 1.1d to get -2.3d.
-2.3d=11.08+9.39
Add 9.39 to both sides.
-2.3d=20.47
Add 11.08 and 9.39 to get 20.47.
d=\frac{20.47}{-2.3}
Divide both sides by -2.3.
d=\frac{2047}{-230}
Expand \frac{20.47}{-2.3} by multiplying both numerator and the denominator by 100.
d=-\frac{89}{10}
Reduce the fraction \frac{2047}{-230} to lowest terms by extracting and canceling out 23.
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}