Question

(18х-15)-(9+11х)=-3х

Answer 1

Ответ:

Объяснение:

(18х-15)-(9+11х)=-3х

18х - 15 - 9 - 11х = -3х

7х + 3х = 24

10х = 24

х = 24 : 10

х = 2,4

Answer 2

Ответ:

решение смотри на фотографии

Answer 3

Let's solve the given equation step by step:

(18x - 15) - (9 + 11x) = -3x

First, distribute the negative sign inside the second parentheses:

18x - 15 - 9 - 11x = -3x

Next, combine like terms on both sides of the equation:

(18x - 11x) + (-15 - 9) = -3x

7x - 24 = -3x

To isolate the variable x on one side of the equation, we can move the terms involving x to the left side and the constant term to the right side:

7x + 3x = 24

Combining like terms:

10x = 24

Finally, divide both sides of the equation by 10 to solve for x:

x = 24/10

Simplifying the fraction:

x = 12/5 or 2.4

Therefore, the solution to the equation (18x - 15) - (9 + 11x) = -3x is x = 2.4.