найдите корень уравнения (7х+1)-(9х+3)=5 3.4+2y=7(y-2.3)

(7х+1)-(9х+3)=57х+1-9х-3=57х-9х=5-1+3-2х=7х=-3.53.4+2у=7(у-2.3)3.4+2у=7у-16.12-7у=-16.1-3.4-5у=12.7у=-12.7/5