Question

Va rog sa ma ajutati la acest exercitiu.P.S dava e corect dau coroana si am nevoie de ea in jumate de ora. DOAR EXERCITIUL 9 !!!!!!!!

Answer 1

a)46:2+{78-3x[(15+35):5]-3x7}=
46:2+[78-3x(50:5)-3x7]=
46:2x(78-3x10-21)=
46:2x(78-30-21)=
46:2x27=
23x27621

b)9x{8+7x[6+5x(4+3x(2+1))]}:(1+2+..9)=
9x{8+7x[6+5x(4+3x3)]}:45=
9x{8+7x[6+5x(4+9)]}:45=
9x[8+7x(6+5x13)]:45=
9x[8+7x(6+65)]:45=
9x(8+7x71):45=
9x(8+497):45=
9x505:45=101

c)1+2x{3+4:[5-6:(7-8:(9-1))]}=
1+2x{3+4:[5-6:(7-8:8)]}=
1+2x{3+4:[5-6:(7-1)]}=
1+2x[3+4:(5-6:6)]=
1+2x[3+4:(5-1)]=
1+2x(3+4:4)=
1+2x(3+1)=
1+2x4=
1x8=9