Solve for a
a=-\frac{4b}{7}+\frac{5}{14}
Solve for b
b=-\frac{7a}{4}+\frac{5}{8}
Share
Copied to clipboard
14a+8b=5
Combine 5a and 9a to get 14a.
14a=5-8b
Subtract 8b from both sides.
\frac{14a}{14}=\frac{5-8b}{14}
Divide both sides by 14.
a=\frac{5-8b}{14}
Dividing by 14 undoes the multiplication by 14.
a=-\frac{4b}{7}+\frac{5}{14}
Divide 5-8b by 14.
14a+8b=5
Combine 5a and 9a to get 14a.
8b=5-14a
Subtract 14a from both sides.
\frac{8b}{8}=\frac{5-14a}{8}
Divide both sides by 8.
b=\frac{5-14a}{8}
Dividing by 8 undoes the multiplication by 8.
b=-\frac{7a}{4}+\frac{5}{8}
Divide 5-14a by 8.
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}