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JustAndreea
a fost răspuns

Daca x=4,a+b=10,calculati 5•x+8•a+8•b

Răspuns :

Sebatanu

a=10-b

5*4+8(10-b)+8*b=20+8(10-b+b)=20+80=100

Cocirmariadenis

x = 4    si   a + b = 10

5 x + 8 a + 8 b = 5 × 4 + 8 × ( a + b ) = 20 + 8 × 10 = 20 + 80 = 100

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