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a fost răspuns

desfasurati: B:B+B-Bx0=24
0x(5x4+80-20x5)+1=
(240: ? +6)x5-7x7=1

Răspuns :

Crys157724ask

1). 0×(5×4+80-20×5)+1=

0×(20+80-100)+1=

0×(100-100)+1=

0×0+1=

0+1=1

2). (240:a+6)×5-7×7=1

(240:a+6)×5-49=1

(240:a+6)×5=1+49

(240:a+6)×5=50

(240:a+6)=50:5

(240:a+6)=10

240:a=10-6

240:a=4

a=240:4

a=60

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