\(\displaystyle\frac{{5}}{{{a}+{2}}}-\frac{{7}}{{a}}=\frac{{{5}{a}-{7}{\left({a}+{2}\right)}}}{{{a}{\left({a}+{2}\right)}}}=\frac{{-{2}{a}-{14}}}{{{a}{\left({a}+{2}\right)}}}\)

Question

asked 2021-05-13

Solve the equation \(4x^{2}=8x-7\), inequality, or system of equations.

asked 2021-05-08

Use the properties of logarithms to solve the following equation.

\(\log_{7}(x+2)=\log_{7}(14)−\log_{7}(x−3)\)

\(\log_{7}(x+2)=\log_{7}(14)−\log_{7}(x−3)\)

asked 2021-03-29

Solve the system. If the system does not have one unique solution, also state whether the system is onconsistent or whether the equations are dependent.

2x-y+z=-3

x-3y=2

x+2y+z=-7

2x-y+z=-3

x-3y=2

x+2y+z=-7

asked 2021-04-19

Solve the equation:

\(\displaystyle{2}^{{{7}-{3}{x}}}={\frac{{{1}}}{{{4}}}}\)

\(\displaystyle{2}^{{{7}-{3}{x}}}={\frac{{{1}}}{{{4}}}}\)