Network -- RC network with sources

[anand raj]

Homework Statement

The current Ix and Vx in the below circuit are

The Attempt at a Solution

Volt at node A= V.
Applying KCL at node A,
V/5+ ((V-20) /10) -7=0,
3V =90,
V=30.

 

[NascentOxygen]

Please show your working for calculating the voltage at node A.