Question

 -3 • (-0,7) + 78: (- 5,4 + 1,5​

Answer 1

2.1+(-20)=-17,9 вот-с

Answer 2

Let's break down the expression step by step:

1. -3 * (-0.7): Multiply -3 by -0.7: -3 * (-0.7) = 2.1 (because a negative multiplied by a negative is positive)

2. 78 / (-5.4 + 1.5): Add -5.4 and 1.5 first: -5.4 + 1.5 = -3.9

   Then, divide 78 by -3.9: 78 / (-3.9) = -20

So, the final result of the expression is -20.