Question

решите уравнение 0.6*(x+7)=0.5*(x-3)+6.8

Answer 1

 0.6*(x+7)=0.5*(x-3)+6.8

0.6x+4.2=0.5x-1.5+6.8

0.6x-0.5x=-4.2-1.5+6.8

0.1x=-5.7+6.8

0.1x=1.1

x=1.1/0.1

x=11