Solve the equation and express the solution in exact form.
-$\ln \mathrm { e } ^ { \mathrm { x } } - \ln \mathrm { e } ^ { 7 } = \ln \mathrm { e } ^ { 4 }$
A) $\{ 3 \}$
B) $\{ - 3 \}$
C) $\{ 11 \}$
D) $\{ 28 \}$

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The Answer of Solve the equation and express the solution in exact form.
-$\ln \mathrm { e } ^ { \mathrm { x } } - \ln \mathrm { e } ^ { 7 } = \ln \mathrm { e } ^ { 4 }$
A) $\{ 3 \}$
B) $\{ - 3 \}$
C) $\{ 11 \}$
D) $\{ 28 \}$

Solve the Equation and Express the Solution in Exact Form ln⁡ex−ln⁡e7=ln⁡e4\ln \mathrm { e } ^ { \mathrm { x } } - \ln \mathrm { e } ^ { 7 } = \ln \mathrm { e } ^ { 4 }lnex−lne7=lne4

Solve the Equation and Express the Solution in Exact Form $\ln \mathrm { e } ^ { \mathrm { x } } - \ln \mathrm { e } ^ { 7 } = \ln \mathrm { e } ^ { 4 }$