Afla numarul necunoscut din fiecare expresie dupa exemplul oferit.

20*e(1950+550):100=6175

35*f+(800-752:4):2=551

g:25+(100-1632:51)*2=286

244-h*5+(300-6x16):4=255

20e·(1950 + 550) : 100 = 6175

20e·2500 : 100 = 6175

20e·25 = 6175

500e = 6175

e = 6175/500

e = 247/20

35f + (800 - 752 : 4) : 2 = 551

35f + (800 - 188) : 2 = 551

35f + 612 : 2 = 551

35f = 551 - 306

35f = 245

f = 7

g:25 + (100 - 1632 : 51) × 2 = 286

g:25 + (100 - 32) × 2 = 286

g : 25 + 68 × 2 = 286

g : 25 = 286 - 136

g : 25 = 150

g = 25 × 150

g = 3750

244 - h×5 + (300 - 6×16) : 4 = 255

- 5h + (300 - 96) : 4 = 255 - 244

- 5h + 204 : 4 = 11

51 - 11 = 5h

40 = 5h

h = 8

Răspuns:

1). 20ex2500:100=6175

20ex25=6175

500 e=6175

e=6175/500=247/20

2). 35 f+(800-188):2=551

35 f+612:2=551

35 f=551-306

35 f=245

f=245:35=7

3). g:25+(100-32)x2=286

g:25+68x2=286

g:25=286-136

g:25=150

g=150x25

g=3750

4). - 5h+(300-96):4=255-244

- 5h+204:4=11

51-11=5h

40=5h

h=40/5=8

Explicație pas cu pas: