Question

10x+1,5*(2,3-1,7)=13,9

Answer 1

10х+1,5*0,6=13,9

10х+0,9=13,9

10х= 13,9-0,9

10х=13

х=13\10

Answer 2

To solve the equation, follow these steps:

1. Perform the operations inside the parentheses first.
2. Then, perform the multiplication and addition operations from left to right.

Let's solve the equation step by step:

1. Calculate the expression inside the parentheses: 2.3 - 1.7 = 0.6

2. Now, we have: 10x + 1.5 * 0.6 = 13.9

3. Next, perform the multiplication: 1.5 * 0.6 = 0.9

4. The equation now becomes: 10x + 0.9 = 13.9

5. To isolate the variable x, subtract 0.9 from both sides of the equation: 10x = 13.9 - 0.9 10x = 13.0

6. Finally, divide both sides by 10 to solve for x: x = 13.0 / 10 x = 1.3

So, the value of x that satisfies the equation is 1.3.