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a fost răspuns

stind ca 8 ×a +6×b≈86si 8 ×a + 10 ×b ≈106 afla a si b

Răspuns :

Oanahadambu
8×a+6×b=86
8×a+10×b =106
10B-6b=4b=106-86=20 =>4b=20=>b=20:4 =>b=5
8×a+6×5=86=>8a=86-6×5=86-30=56=>a=56:8=>a=7
deci a=7 si b=5

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