Question

Vă rog să mă ajutați! ​

Answer 1

Răspuns:

Explicație pas cu pas:

[(2.112x2:4-1000):2+5xa]-72+111=112

[(4224:4-1.000):2+5xa]-72+111=112

[(1056-1.000):2+5xa)-72+111=112

(56:2+5xa)-72+111=112

(28+5xa)-72+111=112

(28+5xa)-72=112-111

(28x5xa)-72=1

28x5a=1+72

28x5xa=73

5xa=73-28

5xa=45

a= 45:5

a=9

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[(72:a-12)x36-95]-( 744-602)=195

[(72:a-12) x36-95]-142=195

(72:a-12)x36-95=195+142

(72:a-12)x36-95=337

(72:a-12)x36=337+95

(72:a-12)x36=432

72:a-12=432:36

72:a-12= 12

72:a=12+12

72:a=24

a= 72:24

a= 3