Question

3x-(17-(12-5x))=40-(-(-(-12)))

Answer 1

Ответ:

3х-17+12+6х=40+12

9х-5=52

9х=57

х=6,3

Answer 2

Let's solve the equation step by step:

1. First, simplify both sides of the equation by removing the double negatives on the right side:

   3x - (17 - (12 - 5x)) = 40 - (-(-(-12))) 3x - (17 - (12 - 5x)) = 40 - 12

2. Now, work on simplifying the expressions inside the parentheses:

   3x - (17 - (12 - 5x)) = 28

3. Next, simplify the innermost set of parentheses (12 - 5x):

   3x - (17 - (12 - 5x)) = 28 3x - (17 - 12 + 5x) = 28

4. Continue simplifying within the parentheses:

   3x - (5x - 5) = 28

5. Distribute the negative sign inside the parentheses:

   3x - 5x + 5 = 28

6. Combine like terms on the left side of the equation:

   (3x - 5x) + 5 = 28 -2x + 5 = 28

7. Now, isolate the variable x by moving the constant term to the other side of the equation:

   -2x + 5 = 28 -2x = 28 - 5 -2x = 23

8. Finally, divide both sides by -2 to solve for x:

   -2x = 23 x = 23 / -2 x = -11.5

So, the solution to the equation is x = -11.5.