Question

−a + (−b) a = −2,2 b = −7,3

Answer 1

Ответ:

9,5

Пошаговое объяснение:

-(-2,2)+(-(-7,3))=2,2+7,3=9,5

Answer 2

It looks like you have provided two equations with variables a and b:

1. -a + (-b)a = -2.2
2. 2b = -7.3

Let's solve these equations one by one:

Equation 1: -a + (-b)a = -2.2

First, factor out the common 'a' from both terms on the left-hand side: a(-1 - b) = -2.2

Now, divide both sides by (-1 - b) to solve for 'a': a = -2.2 / (-1 - b)

Now, we need to find the value of 'b' from Equation 2:

2b = -7.3

Divide both sides by 2 to solve for 'b': b = (-7.3) / 2 b = -3.65

Now that we know the value of 'b', we can substitute it back into Equation 1 to find 'a':

a = -2.2 / (-1 - (-3.65)) a = -2.2 / (-1 + 3.65) a = -2.2 / 2.65 a ≈ -0.83 (rounded to two decimal places)

So, the solution to the system of equations is approximately: a ≈ -0.83 b ≈ -3.65