Question

Am nevoie de ajutor. Dau coroana imediat dupa răspuns. Va rog urgent ajutorrrrr! ​

Answer 1

Răspuns:

3. 246-205=41

41•4=164

164-100=64

64:2=32

R:32

4. 2•15=30

30+30=60

60:5=12

12-2=10

R:10

5. 306•6=1836

1836-352=1484

1484:4=371

R:371

Answer 2

Răspuns:

3)

(ax2+100):4+205=246

(ax2+100):4=246-205

(ax2+100):4=41

(ax2+100)=41x4

ax2+100=164

ax2=164-100

ax2=64

a=64:2

a=32

4)

[(x+2)x5-30]:15=2

[(x+2)x5-30]=2x15

(x+2)x5-30=30

(x+2)X5=30+30

(x+2)X5=60

(x+2)=60:5

x+2=12

x=12-2

x=10

5)

[(ax4)+352]:6=306

[(ax4)+352]=306x6

(ax4)+352=1836

(ax4)=1836-352

ax4=1484

a=1484:4

a=371