Solve for F
F = \frac{37}{20} = 1\frac{17}{20} = 1.85
Share
Copied to clipboard
20F+4\left(2\times 5+2\right)=5\left(4\times 4+1\right)
Multiply both sides of the equation by 20, the least common multiple of 5,4.
20F+4\left(10+2\right)=5\left(4\times 4+1\right)
Multiply 2 and 5 to get 10.
20F+4\times 12=5\left(4\times 4+1\right)
Add 10 and 2 to get 12.
20F+48=5\left(4\times 4+1\right)
Multiply 4 and 12 to get 48.
20F+48=5\left(16+1\right)
Multiply 4 and 4 to get 16.
20F+48=5\times 17
Add 16 and 1 to get 17.
20F+48=85
Multiply 5 and 17 to get 85.
20F=85-48
Subtract 48 from both sides.
20F=37
Subtract 48 from 85 to get 37.
F=\frac{37}{20}
Divide both sides by 20.
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}