Question

1)7х+2х+=3,528; 2)(1,24-х)*3,6=3,888

Answer 1

Ответ:

1) 7х+2х=3,528

9х = 3,528

х = 0,392

2) (1,24-х)*3,6=3,888

4,464 - 3,6х = 3,888

-3,6х = -0,576

х = 0,16

Answer 2

It looks like you've provided two equations, and it seems you want to solve for the variable "x" in both equations. Let's work through them step by step.

Equation 1: 7x + 2x = 3,528

Combine the "x" terms on the left side: 7x + 2x = 9x

So now the equation becomes: 9x = 3,528

Now, divide both sides by 9 to solve for "x": x = 3,528 / 9 x = 392

So, the solution for the first equation is x = 392.

Equation 2: (1.24 - x) * 3.6 = 3.888

Distribute the 3.6 on the left side: 3.6 * 1.24 - 3.6x = 3.888

Now, subtract 3.6 * 1.24 from both sides: -3.6x = 3.888 - 3.6 * 1.24 -3.6x = 3.888 - 4.464 -3.6x = -0.576

Finally, divide both sides by -3.6 to solve for "x": x = -0.576 / -3.6 x = 0.16

So, the solution for the second equation is x = 0.16.

To summarize:

1. For the equation 7x + 2x = 3,528, the solution is x = 392.
2. For the equation (1.24 - x) * 3.6 = 3.888, the solution is x = 0.16.