Solve for w
w = \frac{147}{20} = 7\frac{7}{20} = 7.35
Share
Copied to clipboard
20w-15=4\left(6\times 5+3\right)
Multiply both sides of the equation by 20, the least common multiple of 4,5.
20w-15=4\left(30+3\right)
Multiply 6 and 5 to get 30.
20w-15=4\times 33
Add 30 and 3 to get 33.
20w-15=132
Multiply 4 and 33 to get 132.
20w=132+15
Add 15 to both sides.
20w=147
Add 132 and 15 to get 147.
w=\frac{147}{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}