8a-(4b+3a)-(4a-3b) при а)a=6.8. b=7.3. b) a=-8.9. b=-9.9

Question

8a-(4b+3a)-(4a-3b)

при а)a=6.8. b=7.3. b) a=-8.9. b=-9.9

Answer 1

8a-(4b+3a)-(4a-3b) = 8а-4b-3a-4a+3b = a-b

a) 6.8 - 7.3 = -0.5

b) -8.9 - (-9.9) = 1