Solve for x
x=\frac{7}{9}\approx 0.777777778
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3x+\frac{6}{3}+\frac{2}{3}=5
Convert 2 to fraction \frac{6}{3}.
3x+\frac{6+2}{3}=5
Since \frac{6}{3} and \frac{2}{3} have the same denominator, add them by adding their numerators.
3x+\frac{8}{3}=5
Add 6 and 2 to get 8.
3x=5-\frac{8}{3}
Subtract \frac{8}{3} from both sides.
3x=\frac{15}{3}-\frac{8}{3}
Convert 5 to fraction \frac{15}{3}.
3x=\frac{15-8}{3}
Since \frac{15}{3} and \frac{8}{3} have the same denominator, subtract them by subtracting their numerators.
3x=\frac{7}{3}
Subtract 8 from 15 to get 7.
x=\frac{\frac{7}{3}}{3}
Divide both sides by 3.
x=\frac{7}{3\times 3}
Express \frac{\frac{7}{3}}{3} as a single fraction.
x=\frac{7}{9}
Multiply 3 and 3 to get 9.
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}