Question

A) 7,1+x=-1,8b) x-1/3=-7/12очень срочно даю 20 балов быстооо​

Answer 1

Пошаговое объяснение:

извините что начёркал.........

Answer 2

A) To solve the equation 7.1 + x = -1.8, we need to isolate the variable x.

First, let's subtract 7.1 from both sides of the equation:

7.1 + x - 7.1 = -1.8 - 7.1

Simplifying the equation, we have:

x = -8.9

Therefore, the solution to the equation 7.1 + x = -1.8 is x = -8.9. [[1]]

B) To solve the equation x - 1/3 = -7/12, we need to isolate the variable x.

First, let's add 1/3 to both sides of the equation:

x - 1/3 + 1/3 = -7/12 + 1/3

Simplifying the equation, we have:

x = -7/12 + 1/3

To add the fractions -7/12 and 1/3, we need to find a common denominator. The least common multiple of 12 and 3 is 12.

Converting -7/12 and 1/3 to have a common denominator of 12, we get:

x = -7/12 + 4/12

Adding the fractions, we have:

x = -7/12 + 4/12 = -3/12 = -1/4

Therefore, the solution to the equation x - 1/3 = -7/12 is x = -1/4. [[2]]

In summary: A) The solution to the equation 7.1 + x = -1.8 is x = -8.9. B) The solution to the equation x - 1/3 = -7/12 is x = -1/4.