9х+(7х+5)-(2х-3)=х+47
9х+7х+5-2х+3-х-47=0
9х+7х-2х-х=47-3-5
13х=39
х=39/13
х=3
9х+7х+5-2х+3=х+47
9х+7х-2х-х=47-5-3
х=39 : 3
9х+(7х+5)-(2х-3)=х+47
9х+7х+5-2х+3-х-47=0
9х+7х-2х-х=47-3-5
13х=39
х=39/13
х=3
9х+(7х+5)-(2х-3)=х+47
9х+7х+5-2х+3=х+47
9х+7х-2х-х=47-5-3
13х=39
х=39 : 3
х=3