Question

1,5*[3+5х]-11,5=-8,5​

Answer 1

Пошаговое объяснение:

4.5+7.5x-11.5=-8.5

7.5x=-8.5-4.5+11.5

7.5x=15.5

x=2.2/13

Answer 2

Let's solve the equation step by step:

1,5*[3+5x] - 11,5 = -8,5

First, let's simplify the expression inside the brackets:

1,5 * (3 + 5x) - 11,5 = -8,5

Multiply 1.5 by each term inside the brackets:

4.5 + 7.5x - 11.5 = -8.5

Next, let's combine like terms:

7.5x - 7 = -8.5

Now, let's isolate the variable term:

7.5x = -8.5 + 7

7.5x = -1.5

Finally, let's solve for x by dividing both sides by 7.5:

x = -1.5 / 7.5

x = -0.2

Therefore, the solution to the equation is x = -0.2.