(a) Find the exact solution of the exponthtial equations in terms of logarithms. (b) ust a calculator to Find an approximation to the solution rounded to six decimal placts. \[ 3 e^{x}=10 \]

Resolver \( \left\{\begin{aligned} x+2 y+z & =4 \\ 3 x+z & =2 \\ x-y+z & =7\end{aligned}\right. \)

Simplify the expression \( 9 j-j+8 j \)

Simplify the expression: \( -4 m+4 m-9 m-8 m-6 m \) Submit

Simplify the expression: \( 3 z-6+7-3 z+9 \)

\( \left. \begin{array} { r l r l } { 5 x + 3 x + 2 x } & { = } & { 7 y + 5 y - 9 y } & { = } \\ { 2 a + 4 a + 6 a } & { = } & { 2 a + 3 a - 5 a } & { = } \\ { 3 x + 5 x - 6 x } & { = } & { 10 x - 5 x + 12 x } & { = } \\ { - 5 y - 8 y } & { = } & { - 11 b - 7 b } & { = } \end{array} \right. \)