Question

cum fac aici ca nu stiu va rog doar unde ie inconjurat

Answer 1

4* [(4*x-72):4+20]-64=20
4*(4*x-72:4+20)=20+64
4*(4*x-18+20)=84
4*4*x-18=84-20
16*x-18=104
16*x=104+18
16*x=122x=122:16
x=7,625
b) 643-[(x-162):5+159]=454
643-(x-162:5)=454-159
643-(x-162:5)=295
643-(x-162)=1475
643--x=1475+162
643-x=1637
x=1637-643
x=994
c) [(3*x+4)*2+5]*3+5=170
[(3*x+4)*2+5]*3=170-5
[(3*x+4)*2+5]*3=165
[(3*x+4)*2+5]=165:3
(3*x+4*2+5)=55
3*x+8=55-5
3*x+8=50
3*x=50-8
3*x=42
x=42:3
x=14
Sper ca team ajutat