Răspuns:
a) 20 x e -(1950+550):100=6175
20x e - 2500:100=6175
20×e-25=6175/+25
20×e=6200
e=6200÷20
e=310
b)35×f+(800-752:4):2=551
35×f+(800-188):2=551
35×f+612:2=551
35×f+306=551/-306
35×f=245
f=245:35
f=7
c)g:25+(100-1632:51)×2=286
g:25+(100-32)×2=286
g÷25+68×2=286
g:25+136=286/-136
g:25=150
g=150×25
g=3750
d)244-h×5+(300-6×16):4=255
244-h×4+(300-96):4=255
244-h×4+204÷4=255
244-h×4+51=255/-51
244-h×4=204/-244 (244-204)
h×4=40
h=40:4
h=10
Cu mare plăcere . Sper ca te-am ajutat
