Verify
true
Quiz
Arithmetic
5 problems similar to:
6 \frac { 2 } { 7 } + 4 \frac { 1 } { 7 } = 10 \frac { 3 } { 7 }
Share
Copied to clipboard
6\times 7+2+4\times 7+1=10\times 7+3
Multiply both sides of the equation by 7.
42+2+4\times 7+1=10\times 7+3
Multiply 6 and 7 to get 42.
44+4\times 7+1=10\times 7+3
Add 42 and 2 to get 44.
44+28+1=10\times 7+3
Multiply 4 and 7 to get 28.
72+1=10\times 7+3
Add 44 and 28 to get 72.
73=10\times 7+3
Add 72 and 1 to get 73.
73=70+3
Multiply 10 and 7 to get 70.
73=73
Add 70 and 3 to get 73.
\text{true}
Compare 73 and 73.
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}