Question

3(5+3x)-6(2x-4)=12x+19

Answer 1

3(5+3x)-6(2x-4)=12x+19
15+9x-12x+24=12x+19
3(5+3x-4x+8)=12x+19
39-3x=12x+19
20=15x
x=1 1/3

Answer 2

Вот я решила..........

Answer 3

Let's solve the given equation step-by-step:

1. Distribute the terms inside the parentheses: 3(5 + 3x) - 6(2x - 4) = 12x + 19

   This simplifies to: 15 + 9x - 12x + 24 = 12x + 19

2. Combine like terms: 9x - 12x = -3x 15 + 24 = 39

   The equation now becomes: -3x + 39 = 12x + 19

3. To solve for x, we want to isolate the variable on one side. Let's move the terms involving x to one side by subtracting 12x from both sides and adding 39 to both sides:

   -3x + 39 - 12x = 12x + 19 - 12x

   Simplifying further: -3x - 12x + 39 = 19

4. Combine like terms again: -15x + 39 = 19

5. Now, we want to isolate the variable x. Let's move the constant term to the other side by subtracting 39 from both sides:

   -15x + 39 - 39 = 19 - 39

   Simplifying further: -15x = -20

6. Finally, solve for x by dividing both sides by -15:

   x = -20 / -15

   x = 4/3

So the solution to the equation is x = 4/3.