1) 7(0,5(-0,82)+1) + 1.5(-0,82) - 9= 7(0,5(-0,82)+1) + 1.5(-0,82) - 9= 7(-0.41+1) + (-1.23) - 9= 7*0.59 - 1.23 - 9= 4.13 - 1.23 - 9= 2.9 - 9= -6.1
2) 3.5(3-41.33) - 5.7 + 81.33= 3.5(3-5.32) - 5.7 + 10.64= 3.5*(-2.32) - 5.7 + 10.64= -8.12 - 5.7 + 10.64= -2.46 + 10.64= 8.18
3) -6(2/37+1) + 77 + 5= -6(14/3+1) + 49 + 5= -6(14/3+3/3) + 54= -6(17/3) + 54= -102/3 + 54= -34 + 54= 20
1) 7(0,5(-0,82)+1) + 1.5(-0,82) - 9
= 7(0,5(-0,82)+1) + 1.5(-0,82) - 9
= 7(-0.41+1) + (-1.23) - 9
= 7*0.59 - 1.23 - 9
= 4.13 - 1.23 - 9
= 2.9 - 9
= -6.1
2) 3.5(3-41.33) - 5.7 + 81.33
= 3.5(3-5.32) - 5.7 + 10.64
= 3.5*(-2.32) - 5.7 + 10.64
= -8.12 - 5.7 + 10.64
= -2.46 + 10.64
= 8.18
3) -6(2/37+1) + 77 + 5
= -6(14/3+1) + 49 + 5
= -6(14/3+3/3) + 54
= -6(17/3) + 54
= -102/3 + 54
= -34 + 54
= 20