Răspuns :
130+5x7x(7x8-8x6)-10x10=310
130+5x7x(56-48)-10x10=
130+5x7x8-100=
130+35x8-100=
130+280-100=310
130+5x7x(56-48)-10x10=
130+5x7x8-100=
130+35x8-100=
130+280-100=310