Solve the linear oquation.
\[
7 x+6=4 x+39
\]
Belect the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The solution set is \{\} . (Type an integer or a simplified fraction.)
B. The solution set is $\{x \mid x$ is a real number $\}$.
C. The solution set is $\varnothing$.

Answer

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Answer

The solution set is $\boxed{\{11\}}$.

Steps

Step 1 ：Subtract 4x from both sides of the equation to get $3x + 6 = 39$.

Step 2 ：Subtract 6 from both sides to get $3x = 33$.

Step 3 ：Divide both sides by 3 to solve for x, giving $x = 11$.

Step 4 ：The solution set is $\boxed{\{11\}}$.